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Hirakawa N, Higashimoto I, Takamori A, Tsukamoto E, Uemura Y. Correction to: The impact of endoscopic thoracic sympathectomy on sudomotor function in patients with palmar hyperhidrosis. Clin Auton Res 2020; 31:345. [PMID: 32451754 DOI: 10.1007/s10286-020-00699-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Naomi Hirakawa
- Department of Pain Clinic & Palliative Care Medicine, Department of the Anesthesiology & Critical Care Medicine, Saga University Hospital, 5-1-1, Nabeshima, Saga, 849-8501, Japan.
| | - Ikuyo Higashimoto
- Department of Anesthesiology, JCHO Saga Central Hospital, Saga, Japan
| | - Ayako Takamori
- Clinical Research Center, Saga University Hospital, Saga, Japan
| | - Eri Tsukamoto
- Department of Pain Clinic & Palliative Care Medicine, Saga University Hospital, 5-1-1, Nabeshima, Saga, 849-8501, Japan
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Kimura S, Emoto A, Yoshimura M, Arimizu K, Kamura T, Sogawa R, Mizuta K, Tagomori Y, Natsuaki M, Kajiwara M, Tsuruoka N, Yakushiji Y, Tanigawa Y, Takamatsu C, Danjo A, Kamohara K, Hirakawa N, Sakaguchi Y, Noguchi M, Noshiro H, Kawaguchi A, Sueoka E, Narisawa Y, Kimura S. Development of an application for management of drug holidays in perioperative periods. Medicine (Baltimore) 2020; 99:e20142. [PMID: 32384497 PMCID: PMC7220215 DOI: 10.1097/md.0000000000020142] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/12/2020] [Accepted: 04/03/2020] [Indexed: 11/30/2022] Open
Abstract
Before surgery and other invasive treatments, decisions must be made on whether to discontinue drugs and provide appropriate drug holidays especially for antithrombotic drugs, and this is made difficult by the large number of available drugs and associated guidelines. We have therefore developed an online application for perioperative drug discontinuation and resumption management, named Saga Application for Management of Drug Holidays in PeriOperative Periods (SAMPOP).Multidisciplinary medical staff at Saga University Hospital (SUH) worked together to build an evidence-based Perioperative Drug Discontinuation Management Database (PDDMD) and developed the user-friendly SAMPOP online application via preliminary verification at SUH. From September 2018 to February 2020, 420 medical staff at SUH, including physicians, nurses, and pharmacists, installed and tested SAMPOP.Rate per surgical procedure for forgetting to discontinue antithrombotic drugs preoperatively decreased from 0.18% to 0.09% as of August 2019, 12 months after the introduction of SAMPOP (P = .1359). In addition, six months later, it decreased further to 0.03% as of February 2020 (P = .0436). Forgetting to resume antithrombotic drugs postoperatively decreased from 0.20% to 0.02% as of August 2019, 12 months after the introduction of SAMPOP (P = .0008). There was no case of forgetting to resume the medication in the last 6 months.SAMPOP may be useful for management of drug holidays in the clinic and warrants further evaluation of its safety and efficacy.
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Affiliation(s)
- Sakiko Kimura
- Safety Management Section, Saga University Hospital
- Dep. of Pharmacy, Saga University Hospital
| | | | | | - Kota Arimizu
- Clinical Research Center, Saga University Hospital
| | | | | | - Kikumi Mizuta
- Safety Management Section, Saga University Hospital
- Department of Nursing, Saga University Hospital
| | - Yasuhiro Tagomori
- Safety Management Section, Saga University Hospital
- Department of Nursing, Saga University Hospital
| | - Masahiro Natsuaki
- Div. of Cardiovascular Medicine, Dep. of Internal Medicine, Faculty of Medicine, Saga University
| | - Masataka Kajiwara
- Div. of Cardiovascular Medicine, Dep. of Internal Medicine, Faculty of Medicine, Saga University
| | - Nanae Tsuruoka
- Div. of Gastrointestinal Endoscopy, Dep. of Internal Medicine, Faculty of Medicine, Saga University
| | - Yusuke Yakushiji
- Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Saga University
| | | | - Chihiro Takamatsu
- Safety Management Section, Saga University Hospital
- Surgical Center, Saga University Hospital
| | - Atsushi Danjo
- Dep. of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University
| | - Keiji Kamohara
- Dep. of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University
| | - Naomi Hirakawa
- Dep. of Anesthesiology and Critical Care Medicines, Faculty of Medicine, Saga University
| | - Yoshiro Sakaguchi
- Dep. of Anesthesiology and Critical Care Medicines, Faculty of Medicine, Saga University
| | | | | | - Atsushi Kawaguchi
- Clinical Research Center, Saga University Hospital
- Center for Comprehensive Community Medicine, Faculty of Medicine, Saga University
| | - Eisaburo Sueoka
- Dep. of Clinical Laboratory Medicine, Faculty of Medicine, Saga University
| | - Yutaka Narisawa
- Dep. of Pharmacy, Saga University Hospital
- Div. of Dermatology, Dep. of Internal Medicine, Faculty of Medicine, Saga University
| | - Shinya Kimura
- Safety Management Section, Saga University Hospital
- Clinical Research Center, Saga University Hospital
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan
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Sasaguri T, Hirakawa N, Uemura S. Lusutrombopag (Mulpleta®) treatment in a patient with thrombocytopenia complicated by cirrhosis prior to continuous epidural anesthesia during renal artery embolization: a case report. JA Clin Rep 2018; 4:80. [PMID: 32025904 PMCID: PMC6966968 DOI: 10.1186/s40981-018-0217-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/12/2018] [Indexed: 11/15/2022] Open
Abstract
Background The oral thrombopoietin (TPO) receptor agonist lusutrombopag (Mulpleta®) was developed to improve thrombocytopenia in patients with chronic liver disease prior to elective invasive medical procedures. Mulpleta® was first approved for use in Japan in 2015 and in the USA in 2018. In the present report, we discuss a case in which pain management was performed during left renal artery embolization via continuous epidural anesthesia following oral administration of lusutrombopag. To our knowledge, this is the first report to discuss the use of lusutrombopag prior to epidural anesthesia. Case presentation The patient was a 78-year-old woman scheduled to undergo renal artery embolization to address a 3-cm aneurysm of the left renal artery. Fourteen days prior to the scheduled embolization procedure, the urologist was asked to insert an epidural catheter for perioperative and postoperative analgesia. Type C chronic cirrhosis was observed, and platelet count was 5.6 × 104/μL. Eleven days prior to embolization, oral lusutrombopag was initiated at a dosage of 3 mg/day (day 1). Oral lusutrombopag therapy was continued for 5 days, and platelet count on day 11 (i.e., the day prior to surgery) was 12.6 × 104/μL. An epidural catheter was inserted on day 12, following which embolization was performed. Platelet count on day 13 was 11.0 × 104/μL, and the catheter was removed on day 14. No symptoms of epidural hematoma or thrombosis were observed during the patient’s disease course. Conclusions As lusutrombopag is a relatively safe platelet-increasing agent, we believe that this drug can serve as a potential treatment option when performing elective epidural anesthesia in patients with chronic liver disease complicated by thrombocytopenia.
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Affiliation(s)
- Tomoko Sasaguri
- Pain Clinic and Palliative Care Medicine, Saga University Hospital, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
| | - Naomi Hirakawa
- Pain Clinic and Palliative Care Medicine, Saga University Hospital, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Satoko Uemura
- Pain Clinic and Palliative Care Medicine, Saga University Hospital, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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Sasaguri T, Taguchi T, Murata Y, Kobayashi K, Iizasa S, Iizasa E, Tsuda M, Hirakawa N, Hara H, Yoshida H, Yasaka T. Interleukin-27 controls basal pain threshold in physiological and pathological conditions. Sci Rep 2018; 8:11022. [PMID: 30038376 PMCID: PMC6056516 DOI: 10.1038/s41598-018-29398-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 07/10/2018] [Indexed: 12/23/2022] Open
Abstract
Numerous studies have shown that pain sensation is affected by various immune molecules, such as cytokines, in tissues comprising the sensory pathway. Specifically, it has been shown that interleukin (IL)-17 promotes pain behaviour, but IL-10 suppresses it. IL-27 has been reported to have an anti-inflammatory effect through regulation of T cell differentiation, resulting in reduced IL-17 and induction of IL-10. Thus, we hypothesised that IL-27 would have some regulatory role in pain sensation. Here, we provide evidence that endogenous IL-27 constitutively controls thresholds for thermal and mechanical sensation in physiological and pathological conditions. Mice lacking IL-27 or its receptor WSX-1 spontaneously showed chronic pain-like hypersensitivity. Reconstitution of IL-27 in IL-27-deficient mice reversed thermal and mechanical hypersensitive behaviours. Thus, unlike many other cytokines induced by inflammatory events, IL-27 appears to be constitutively produced and to control pain sensation. Furthermore, mice lacking IL-27/WSX-1 signalling showed additional hypersensitivity when subjected to inflammatory or neuropathic pain models. Our results suggest that the mechanisms underlying hypersensitive behaviours caused by the ablation of IL-27/WSX-1 signalling are different from those underlying established chronic pain models. This novel pain control mechanism mediated by IL-27 might indicate a new mechanism for the chronic pain hypersensitivity.
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Affiliation(s)
- Tomoko Sasaguri
- Department of Anesthesiology & Critical Care Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Toru Taguchi
- Department of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan.,Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Yuzo Murata
- Division of Histology and Neuroanatomy, Department of Anatomy & Physiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Kimiko Kobayashi
- Department of Anatomy and Neuroscience, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Sayaka Iizasa
- Department of Biological Science and Technology, The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan
| | - Ei'ichi Iizasa
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Makoto Tsuda
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Naomi Hirakawa
- Department of Anesthesiology & Critical Care Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Hiromitsu Hara
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Hiroki Yoshida
- Division of Molecular and Cellular Immunoscience, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
| | - Toshiharu Yasaka
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
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Hirakawa N. [Management of opioid-induced nausea and vomiting]. Masui 2013; 62:829-835. [PMID: 23905406] [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: 06/02/2023]
Abstract
Opioids are available for patients with chronic non-cancer pain. At the start of treatment, side effects such as nausea and vomiting may occur. As these symptoms appear at a dose lower than that at which analgesic actions are achieved, preventive strategies are important. CTZ stimulation, vestibular stimulation, and motor stagnation of the digestive tract may be involved in the mechanism of opioid-induced nausea and vomiting (OINV). To prevent these symptoms, it is recommended that each mechanism-matched antiemetic agent be administered. Anti-dopaminergic, antihistaminergic, and digestive tract movement-enhancing agents are used as first-choice drugs, respectively. However, it must be considered that the long-term administration of antiemetic agents may cause extrapyramidal symptoms. It is also effective to use opioid rotation or change the administration route from oral to continuous subcutaneous administration. However, concerning chronic, non-cancer pain, the opioid rotation regimen is limited to a combination of codeine preparations, morphine preparations, and fentanyl patches. For long-term administration, the continuous intravenous/subcutaneous injection of opioids is not indicated.
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Affiliation(s)
- Naomi Hirakawa
- Department of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Saga University, Saga 849-8501
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Kawashima M, Matsushima T, Inoue T, Mineta T, Masuoka J, Hirakawa N. Microvascular decompression for glossopharyngeal neuralgia through the transcondylar fossa (supracondylar transjugular tubercle) approach. Neurosurgery 2010; 66:275-80; discussion 280. [PMID: 20489516 DOI: 10.1227/01.neu.0000369662.36524.cf] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Our surgical results were reviewed to clarify the cause of glossopharyngeal neuralgia (GPN) and the effects of the microvascular decompression (MVD) procedure. METHODS Fourteen cases of idiopathic GPN were operated on through the transcondylar fossa (supracondylar transjugular tubercle) approach. Their clinical data and operative records were retrospectively reviewed. RESULTS In every case, vascular compression on the glossopharyngeal nerve was found and MVD was performed without any major complications. In 13 of the 14 cases the neuralgia completely disappeared postoperatively. Recurrence of pain was found in 1 case. Offending vessels were the posterior inferior cerebellar artery (PICA) in 10 cases, the anterior inferior cerebellar artery (AICA) in 2 cases, and both arteries in 2 cases. In 10 of the 14 cases, the high-origin PICA formed an upward loop between the glossopharyngeal and vagus nerves, compressing the glossopharyngeal nerve upward. In those cases, the PICA was transposed and fixed to the dura mater by the stitched sling retraction technique, and MVD was very effective. CONCLUSION The offending artery was the PICA in most cases. MVD is expected to be very effective, especially when the radiological images show the following 3 findings: 1) high-origin PICA, 2) the PICA making an upward loop, and 3) the PICA coursing the supraolivary fossette. The transcondylar fossa approach is suitable for transposing the PICA by the stitched sling retraction technique, and provides sufficient surgical results.
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Affiliation(s)
- Masatou Kawashima
- Department of Neurosurgery, Faculty of Medicine, Saga University, Saga, Japan.
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Yoshida K, Inoue T, Hirakawa N, Node K. Endoscopic thoracic sympathectomy as a novel strategy for vasospastic angina refractory to medical treatments. J Cardiol 2008; 52:49-52. [DOI: 10.1016/j.jjcc.2008.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2008] [Revised: 04/15/2008] [Accepted: 04/21/2008] [Indexed: 10/21/2022]
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Segawa Y, Oda Y, Yamamoto H, Uryu H, Shiratsuchi H, Hirakawa N, Tomita K, Yamamoto T, Oda S, Yamada T, Komune S, Tsuneyoshi M. Overexpression of inducible nitric oxide synthase and accumulation of 8-OHdG in nasopharyngeal carcinoma. Histopathology 2007; 52:213-23. [DOI: 10.1111/j.1365-2559.2007.02920.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Araki K, Hirakawa N, Kosugi T, Higashimoto I, Kakiuchi Y, Nakashima M. Iodoform intoxication; a case report of prolonged consciousness disturbance in a patient with a high plasma iodine level. Fukuoka Igaku Zasshi 2007; 98:397-401. [PMID: 18186295] [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: 05/25/2023]
Abstract
This report describes a case in which a consciousness disturbance was associated with a high plasma iodine level and which improved after the removal of iodoform gauze that had been applied to infected wounds. A 71-year-old male with poorly controlled diabetes underwent a laminectomy for an epidural abscess. On the 6th and 8th postoperative days, he underwent debridement for fasciitis in the both arms and iodoform gauze was applied to the wounds (both arms and lumbar region) at the end of the first debridement and then changed every day. His consciousness then gradually deteriorated after the debridement. His plasma iodine level was measured and was shown to be remarkably high (6,280 microg/dl) 19 days after the laminectomy (13 days after the beginning of iodoform application). His consciousness recovered gradually with a concomitant decrease in the plasma iodine level. Three months after the removal of the iodoform he became almost alert. Caution should be exercised in using iodoform gauze because of the possibility that it could affect consciousness.
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Affiliation(s)
- Kazukuni Araki
- Department of Anesthesiology and Critical Care Medicine, Saga Medical School
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Higashimoto I, Yoshiura KI, Hirakawa N, Higashimoto K, Soejima H, Totoki T, Mukai T, Niikawa N. Primary palmar hyperhidrosis locus maps to 14q11.2-q13. Am J Med Genet A 2006; 140:567-72. [PMID: 16470694 DOI: 10.1002/ajmg.a.31127] [Citation(s) in RCA: 37] [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: 11/06/2022]
Abstract
Primary palmar hyperhidrosis (PPH) is a unique disorder of unknown cause. It is characterized by excessive perspiration of the eccrine sweat gland in the palm, sole, and the axilla. It is presumed that PPH results from overactivation of the cholinergic sympathetic nerve or dysfunction of the autonomic nervous system. There have been no genetic studies on the disease. We performed a linkage analysis of 11 families including 42 affected and 40 unaffected members using genome-wide DNA polymorphic markers to identify the disease locus. Diagnosis of their PPH was made by direct inspection, interviewing and measurement of the sweating rate with perspirometer. Consequently, from data of three of the 11 families examined, the combined maximum two-point LOD scores of 3.08 and 3.16 (recombination fraction = 0) were obtained at the D14S283 and D14S264 loci, respectively, on chromosome 14q11.2-q13, under an assumption that two liability conditions depend on age. These regions were ruled out in eight other families. Haplotype analysis of the three families supported that one of the PPH locus is assigned at minimum to about a 6-cM interval between D14S1070 and D14S990 and at maximum to about a 30-cM interval between D14S1070 and D14S70. This is the first report of systemic mapping of the PPH locus.
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Affiliation(s)
- Ikuyo Higashimoto
- Department of Anesthesiology, Faculty of Medicine, Saga University, Nabeshima, Saga, Japan
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Kohjiro M, Sato H, Katsuki R, Kosugi T, Takasaki M, Hirakawa N, Totoki T. An effective case of glycerol injection into the trigeminal cistern against trigeminal neuralgia resulting from pontine infarction. ACTA ACUST UNITED AC 2005. [DOI: 10.11154/pain.20.35] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masaomi Kohjiro
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
| | - Hidetoshi Sato
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
| | - Ryo Katsuki
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
| | - Toshifumi Kosugi
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
| | - Mitsuhiro Takasaki
- Medical Information & Communication Center, Faculty of medicine, Saga University
| | - Naomi Hirakawa
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
| | - Tadahide Totoki
- Department of Anesthesiology and Critical Medicine, Faculty of medicine, Saga University
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Yamashita K, Tasaki H, Suzuka H, Nihei S, Hirakawa N, Nakashima Y. 2P-0534 Association of coronary atheorosclerosis with coronary flow velocity reserve evaluated by transthoracic Doppler echocardiography. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90673-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Uchino A, Sawada A, Hirakawa N, Totoki T, Kudo S. Congenital absence of the internal carotid artery diagnosed during investigation of trigeminal neuralgia. Eur Radiol 2002; 12:2339-42. [PMID: 12195492 DOI: 10.1007/s00330-001-1262-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2001] [Accepted: 10/24/2001] [Indexed: 10/25/2022]
Abstract
Congenital absence of the unilateral internal carotid artery (ICA) was found in a patient during MR imaging examination for right trigeminal neuralgia. Magnetic resonance angiography showed complete absence of the right ICA and a large tortuous basilar artery (BA). The source images revealed a deformed right trigeminal nerve resulting from compression by the BA. Computed tomography of the skull base showed absence of the right carotid canal, suggesting agenesis of the right ICA. Longstanding hemodynamic stress may have caused the BA to become extremely tortuous, resulting in the trigeminal neuralgia.
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Affiliation(s)
- A Uchino
- Department of Radiology, Saga Medical School, 5-1-1, Nabeshima, Saga 849-8501 Japan.
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Tanii H, Hasegawa T, Hirakawa N, Suzuki M, Tanaka S. Molecular and cellular characterization of a water-channel protein, AQP-h3, specifically expressed in the frog ventral skin. J Membr Biol 2002; 188:43-53. [PMID: 12172646 DOI: 10.1007/s00232-001-0172-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2001] [Indexed: 11/26/2022]
Abstract
Two cDNAs encoding frog aquaporin (AQP) were cloned from a cDNA library constructed for the ventral skin of the tree frog, Hyla japonica and sequenced. One AQP (Hyla AQP-h1) consisted of 271 amino-acid residues with high homology to toad AQP-t1, Rana CHIP28 (AQP1), and rat AQP1. The other AQP (AQP-h3) consisted of 271 amino-acid residues with higher homology to mammalian AQP2 than to mammalian AQP3. The predicted amino-acid sequence contained the conserved two NPA motifs found in all MIP family members and the putative six transmembrane domains. The sequence also confers mercurial sensitivity, which is common to all the AQPs except AQP0, AQP4 and AQP7. Potential N-glycosylation sites were present at Asn-44 in AQP-h1, and at Asn-124 and Asn-125 in AQP-h3. In addition, AQP-h3 had a putative phosphorylation site by protein kinase A at Ser-255, which is identical to mammalian AQP2. In swelling assays using Xenopus oocytes, AQP-h1 facilitates water permeability, whereas AQP-h3 displayed weak water permeability. Searching for the expression of these two AQP mRNAs revealed that AQP-h1 was expressed in most tissues, whereas AQP-h3 was observed only in the ventral skin. An antibody (ST-141) against the C-terminal peptide of the AQP-h3 protein recognized a 29.0 kDa-protein with a molecular mass close to that of the Hyla AQP-h3 protein and immunostained predominantly in the abdominal pelvic skin. In pelvic skin, the label for AQP-h3 was more intense in the upper layer of the stratum granulosum and was localized to both the apical and basolateral plasma membranes of the principal cells. These findings suggest that Hyla AQP-h3 plays a pivotal role in constitutively absorbing water from ventral pelvic skin.
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Affiliation(s)
- H Tanii
- Department of Biology, Faculty of Science, Shizuoka University, Ohya 836, Shizuoka 422-8529, Japan
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Yasumatsu R, Nakashima T, Hirakawa N, Kumamoto Y, Kuratomi Y, Tomita K, Komiyama S. Maspin expression in stage I and II oral tongue squamous cell carcinoma. Head Neck 2001; 23:962-6. [PMID: 11754500 DOI: 10.1002/hed.1139] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND A relatively high failure rate in the therapy of patients with early oral tongue squamous cell carcinomas (SCCs) is evidenced by untreated clinically negative neck lymph node metastasis. It is important to predict the malignant potential of oral tongue SCC in stage I and II patients, because the development of lymph node metastasis directly affects the prognosis of the patients. METHODS We evaluated maspin expression immunohistochemically in patients with stage I and II oral tongue SCCs and determined whether the expression level may be a useful factor in predicting metastatic potential and prognosis of these SCCs. RESULTS Clinical follow-up data showed a longer disease-free interval and overall survival periods for tumors immunohistochemically positive for maspin than for tumors negative for maspin, with the difference in disease-free interval being statistically significant (p =.01). The absence of maspin expression was found more frequently in cases of subsequent cervical lymph node metastasis than in cases without metastasis (p =.03). CONCLUSIONS Decreased maspin expression may be a significant factor associated with the metastatic potential of stage I and II oral tongue SCCs.
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Affiliation(s)
- R Yasumatsu
- Department of Otorhinolaryngology, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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Yasumatsu R, Nakashima T, Azuma K, Hirakawa N, Kuratomi Y, Tomita K, Cataltepe S, Silverman GA, Clayman GL, Komiyama S. SCCA1 expression in T-lymphocytes peripheral to cancer cells is associated with the elevation of serum SCC antigen in squamous cell carcinoma of the tongue. Cancer Lett 2001; 167:205-13. [PMID: 11369142 DOI: 10.1016/s0304-3835(01)00445-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Squamous cell carcinoma (SCC) antigen has been used for the management of SCC arising in various cites including head and neck region. However, the true mechanism of the elevation of this protein in the serum of patients with SCC is still unknown. SCC antigen belongs to the superfamily of serine protease inhibitors. Recently, molecular studies show that serum SCC antigen is transcribed by two nearly identical genes (SCCA1 and SCCA2), and is mainly produced by SCCA1. The objective of this study is to clarify the mechanism of the elevation of SCC antigen in oral tongue SCC patients and to identify cells histologically, which are responsible for serum SCC antigen production. In this study, we examined SCCA1 expression in a series of four head and neck SCC (HNSCC) cell lines, and found that all expressed equal to low SCCA1 protein as compared with the normal human oral keratinocyte. Using the double immunohistochemical technique to examine the expression pattern of SCCA1 in 86 cases of oral tongue squamous cell carcinoma, SCCA1 immunostaining was observed in the cytoplasm of cancer cells and T-lymphocytes peripheral to cancer cells. We also compared the clinicopathological features including serum SCC antigen level of the oral tongue SCC cases with the immunohistochemical SCCA1 expression pattern, and found that elevated serum SCC antigen level was significantly correlated with SCCA1 expression not in cancer cells, but in T-lymphocytes peripheral to cancer cells. These results suggest that T-lymphocytes peripheral to cancer cells may be responsible for serum SCC antigen production in HNSCC patients.
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Affiliation(s)
- R Yasumatsu
- Department of Otorhinolaryngology, Faculty of Medicine, Kyushu University 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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17
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18
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Abstract
The rostral ventromedial medulla contains three physiologically defined classes of pain-modulating neuron that project to the spinal and trigeminal dorsal horns. OFF cells contribute to anti-nociceptive processes, ON cells contribute to pro-nociceptive processes (i.e. hyperalgesia) and neutral cells tonically modulate spinal nociceptive responsiveness. In the setting of noxious peripheral input, the different cell classes in this region permit bi-directional modulation of pain perception (analgesia vs hyperalgesia). It is unclear, however, whether changes in the activity of these neurons are relevant to the behaving animal in the absence of a painful stimulus. Here, we pharmacologically manipulated neurons in the rostral ventromedial medulla and used the place-conditioning paradigm to assess changes in the affective state of the animal. Local microinjection of the alpha(1)-adrenoceptor agonist methoxamine (50.0 microg in 0.5 microl; to activate ON cells, primarily), combined with local microinjection of the kappa-opioid receptor agonist U69,593 (0.178 microg in 0.5 microl; to inhibit OFF cells), produced an increase in spinal nociceptive reactivity (i.e. hyperalgesia on the tail flick assay) and a negative affective state (as inferred from the production of conditioned place avoidance) in the conscious, freely moving rat. Additional microinjection experiments using various concentrations of methoxamine alone or U69, 593 alone revealed that the rostral ventromedial medulla is capable of eliciting a range of affective changes resulting in conditioned place avoidance, no place-conditioning effect or conditioned place preference (reflecting production of a positive affective state). Overall, however, there was no consistent relationship between place-conditioning effects and changes in spinal nociceptive reactivity. This is the first report of bi-directional changes in affective state (i.e. reward or aversion production) associated with pharmacological manipulation of a brain region traditionally associated with bi-directional pain modulation. We conclude that, in addition to its well-described pain-modulating effects, the rostral ventromedial medulla is capable of modifying animal behavior in the absence of a painful stimulus by bi-directionally influencing the animal's affective state.
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Affiliation(s)
- N Hirakawa
- Departments of Neurology and Physiology, and the W. M. Keck Foundation Center for Integrative Neuroscience, University of California at San Francisco, 94143-0453, USA
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Abstract
Orphanin FQ/nociceptin (OFQ/N) and its receptor share substantial structural features and cellular actions with classic opioid peptides and receptors, but have distinct pharmacological profiles and behavioral effects. Currently there is an active debate about whether OFQ/N produces hyperalgesia or analgesia. Using a well-defined brainstem pain-modulating circuit, we show that OFQ/N can cause either an apparent hyperalgesia by antagonizing mu opioid-induced analgesia or a net analgesic effect by reducing the hyperalgesia during opioid abstinence. It presumably produces these two opposite actions by inhibiting two distinct groups of neurons whose activation mediates the two effects of opioid administration. OFQ/N antagonism of the hyperalgesia may have significance for the treatment of opioid withdrawal and sensitized pain.
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Affiliation(s)
- Z Pan
- Department of Neurology, The W.M. Keck Center for Integrative Neuroscience, University of California, San Francisco 94143, USA.
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20
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Shinokuma A, Hirakawa N, Tamiya S, Oda Y, Komiyama S, Tsuneyoshi M. Evaluation of Epstein-Barr virus infection in sinonasal small round cell tumors. J Cancer Res Clin Oncol 2000; 126:12-8. [PMID: 10641744 DOI: 10.1007/pl00008459] [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: 10/25/2022]
Abstract
Sinonasal undifferentiated carcinoma, olfactory neuroblastoma and malignant melanoma of the sinonasal regions are included within the category of small round cell tumors of the sinonasal region. It is difficult to diagnose these tumors on the basis of light-microscopic features alone, but, in some instances, immunohistochemical staining evaluating cytokeratin and S-100 protein, for example, is of value. On the other hand, the sinonasal region is a significant site for Epstein-Barr-virus (EBV)-related tumors, including sinonasal undifferentiated carcinoma or malignant lymphoma. Twenty-three sinonasal small round cell tumors (SSRCT) comprising 5 sinonasal undifferentiated carcinomas, 9 olfactory neuroblastomas and 9 malignant melanomas were evaluated for the presence of EBV infection by in situ hybridization for EBV-encoded RNA, combined with immunostaining for EBV-related proteins (LMP-1 and EBNA2). Furthermore, 55 SSRCT comprising 37 sinonasal undifferentiated carcinomas, 9 olfactory neuroblastomas, and 9 malignant melanomas were examined for the presence of cytokeratins (AE1/ AE3 and CAM5.2), S-100 protein and p53 protein using immunohistochemical staining. According to in situ hybridization for detecting EBV-encoded RNA 1 (EBER1), all of the sinonasal undifferentiated carcinomas showed clear, intense hybridization signals localized over the nuclei of the tumor cells and, in 3 out of 9 (33.3%) malignant melanomas, hybridization signals were also recognized. However, none of the olfactory neuroblastomas revealed hybridization signals. Immunohistochemically, 4 out of 5 (80%) sinonasal undifferentiated carcinomas were positive for LMP-1, whereas only 2 out 9 (22.2%) malignant melanomas and no olfactory neuroblastomas were positive. With regard to EBNA2, sinonasal undifferentiated carcinomas, malignant melanomas and olfactory neuroblastomas were all negative. Out of 37 sinonasal undifferentiated carcinomas 35 (94.6%) showed a diffuse positive immunoreaction for AE1/AE3, whereas neither olfactory neuroblastoma nor malignant melanoma revealed a positive reaction. All 9 malignant melanomas and 6 out of 9 olfactory neuroblastomas (75%) were positive for S-100 protein, whereas only 6 cases of sinonasal undifferentiated carcinomas (19.4%) were positive. As for p53 protein, 16 of 37 sinonasal undifferentiated carcinomas (43.2%) were positive, whereas neither olfactory neuroblastoma nor malignant melanoma revealed any positive reaction. The above results suggest that EBV infection is closely associated with sinonasal undifferentiated carcinomas, and that some malignant melanomas may also have a relationship with its infection. For the differential diagnosis of SSRCT, it is important to evaluate EBV infection along with immunohistochemical staining for cytokeratins and S-100 protein. The overexpression of p53 protein was found to be related to the oncogenesis of sinonasal undifferentiated carcinoma; however, there was no association between its overexpression and malignant melanoma or olfactory neuroblastoma.
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Affiliation(s)
- A Shinokuma
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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21
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Abstract
The present study tested the hypothesis that endogenous opioid peptides acting at the delta-opioid receptor (DOR) in the rostral ventromedial medulla (RVM) contribute to the antinociception elicited by the mu-opioid receptor (MOR) agonist DAMGO in the midbrain periaqueductal gray (PAG). Following microinjection of DAMGO into the PAG, either the highly selective DOR antagonist TIPP[psi] or the DOR2 antagonist naltriben (NTB) was microinjected into the RVM. Both TIPP[psi] (1.0 microg) and NTB (5.0 ng) significantly attenuated the analgesic effect of PAG DAMGO but had no effect when given before PAG saline. These results confirm and extend previous studies suggesting that PAG mu-opioids activate a descending system with a DOR mediated endogenous opioid link in the RVM.
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Affiliation(s)
- N Hirakawa
- Department of Neurology, Wheeler Center for the Neurobiology of Addiction, University of California at San Francisco, 94143, USA
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22
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Hamada M, Hirakawa N, Fukuda T, Furue M, Hori Y, Tsuneyoshi M. A progression to dermatofibrosarcoma protuberans with a fibrosarcomatous component: a special reference to the chromosomal aberrations. Pathol Res Pract 1999; 195:451-60. [PMID: 10448661 DOI: 10.1016/s0344-0338(99)80048-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Dermatofibrosarcoma protuberans (DFSP) with fibrosarcomatous areas (DFSP-FS) is differentiated from ordinary DFSP by its unfavourable prognosis. We carried out sequential analysis of numerical chromosomal abnormalities in two cases of DFSP during their progression to metastatic disease with FS areas (DFSP-M-FS). They were compared with nine cases of ordinary DFSP and three cases of DFSP-FS, but without metastases. Numerical chromosomal changes were examined by fluorescence in situ hybridization (FISH) using alpha-satellite centromeric probes for chromosomes 1, 8, 11 and 17. Numerical imbalances of chromosome 1 were not clarified. A gain of chromosome 8 was demonstrated in the two cases of DFSP-M-FS. A gain of chromosome 11 was observed in one of the two cases of DFSP-M-FS and in one case of DFSP-FS. A gain of chromosome 17 was demonstrated in both metastatic tumours and in recurrent tumours in two cases of DFSP-M-FS, in addition to two cases of DFSP-FS and four cases of ordinary DFSP with recurrent tumours or large tumours. This study raised the hypothesis that a gain of chromosome 17 developed in recurrent or large-sized DFSP, which occurs in high-risk groups with the possibility of a progression to FS.
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Affiliation(s)
- M Hamada
- Second Department of Pathology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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23
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Yasumatsu R, Ichibangase T, Tomita K, Hara T, Sueta T, Hirakawa N, Higaki Y, Tomita K. [Clinical analysis of parotid cancer]. Nihon Jibiinkoka Gakkai Kaiho 1999; 102:883-90. [PMID: 10459290 DOI: 10.3950/jibiinkoka.102.883] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A clinical study was performed on 42 patients with parotid cancers initially treated in our hospital from 1972 to 1997. The five-year cumulative survival rate was 69% in the whole group and 72% in the radical surgical treatment group (n = 40). The five-year survival rates according to stage were as follows: stage I, 95% (21); stage II, 75% (4); stage III, 0% (1); and stage IV, 37% (16). The factors influencing prognosis were cases of T3 and T4 (p < 0.05), stage III and IV (p < 0.01), and cervical lymph node metastasis (p < 0.01). Regarding treatment modalities, a partial parotidectomy appeared to be a curable surgical procedure for T1 cases. However, a lobectomy is recommended for T2 cases. Furthermore our study proposed that prophylactic supraomohyoid neck dissection should be necessary for mucoepidermoid carcinoma (high-grade malignancy) and undifferentiated carcinoma of T4N0 cases.
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Affiliation(s)
- R Yasumatsu
- Division of Head and Neck, National Kyushu Cancer Center, Fukuoka
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24
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Kazuma N, Shirase E, Matsuoka I, Hirakawa N, Otani T, Honjyo M, Murata M. [Circadian rhythm of parasympathetic nervous function in asthmatic children]. Arerugi 1998; 47:1248-51. [PMID: 10028718] [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: 02/10/2023]
Abstract
We examined the circadian rhythm of parasympathetic nervous function in asthmatic children. The subjects were 80 patients with asthma (mild 54 patients, moderate 15 patients and severe 11 patients) and 90 individuals in healthy children. All the patients underwent 24-electrocardiography in normal condition. We measured the %RR50 for hour and analyzed the rhythm using the single cosine fitting method, comparing the values of the Amplitude, the MESOR and the Acrophase in terms of the therapy and also the severity of asthma. Circadian rhythm disappeared in 9 of the 80 asthmatic children and was observed in all the individuals in the healthy children. The value of MESOR was lower in the asthmatic children than in the healthy children. There was no significant difference between the different severity or therapies in each group. In some asthmatic children, the circadian rhythm of parasympathetic nervous function disappeared, the parasympathetic nervous function was low in remission. It is suggested that the disorder of biologic rhythm is related to the pathogenesis of asthma.
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Affiliation(s)
- N Kazuma
- Department of Pediatrics, Tokyo Women's Medical College, Daini Hospital
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25
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Masuda M, Shinokuma A, Hirakawa N, Nakashima T, Komiyama S. Expression of bcl-2-, p53, and Ki-67 and outcome of patients with primary nasopharyngeal carcinomas following DNA-damaging treatment. Head Neck 1998; 20:640-4. [PMID: 9744466 DOI: 10.1002/(sici)1097-0347(199810)20:7<640::aid-hed11>3.0.co;2-k] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Recent studies suggest that apoptosis is important in the cell death induced by treatment that damages deoxyribonucleic acid (DNA). We assessed the correlation between the expression of the apoptosis-related proteins, p53 and bcl-2, and the clinical outcome of patients with nasopharyngeal carcinomas (NPCs) who were treated with both DNA-damaging treatments. We also assessed the level of Ki-67, a marker of cell proliferation, in these tumors. METHODS We evaluated statistically the relationships among the expression of p53, bcl-2, and Ki-67 and clinicopathologic factors, the sensitivity to radiation, the incidence of distant metastases, and survival. RESULTS The group that was positive for p53 tended to be resistant to radiotherapy and to have a significantly poorer prognosis (p = .05). CONCLUSIONS The enhanced expression of p53 may be a prognostic factor in patients with NPCs whose tumor is resistant to therapy that damages DNA.
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Affiliation(s)
- M Masuda
- Department of Otorhinolaryngology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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26
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Hirakawa N, Matsumoto H, Hosoda A, Sekine A, Yamaura T, Sekine Y. A novel histamine 2(H2) receptor antagonist with gastroprotective activity. II. Synthesis and pharmacological evaluation of 2-furfuryl-thio and 2-furfurylsulfinyl acetamide derivatives with heteroaromatic rings. Chem Pharm Bull (Tokyo) 1998; 46:616-22. [PMID: 9579037 DOI: 10.1248/cpb.46.616] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We recently found that N-[3-[3-(piperidinomethyl)phenoxyl]propyl]acetamide derivatives with a thioether function showed gastric anti-secretory and gastroprotective activities and that the thioether function (particularly furfurylthio or furfurylsulfinyl) was essential for gastroprotection. In the present study, a series of 2-furfurylthio and 2-furfurylsulfinyl acetamide derivatives were synthesized and evaluated for histamine H2 receptor antagonistic activity, gastric anti-secretory activity and gastroprotective action. Based on the structure of N-[3-[3-(piperidinomethyl)phenoxyl]propyl]acetamide, we designed compounds, in which the 3-(piperidinomethyl)phenoxy part is substituted with many types of heteroaromatic ring attached to the tertiary amine and the propyl group is replaced with other carbon linkages. Structure-activity relationships are discussed. 2-Furfurylsulfinyl-N-[4-[4-(piperidinomethyl)-2-pyridylox y]- (Z)-2-butenyl]acetamide was the most potent among the tested compounds and was given the code designation FRG-8813.
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Affiliation(s)
- N Hirakawa
- Pharmaceuticals Research Laboratories, Fujirebio Inc., Tokyo, Japan
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27
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Sekine Y, Hirakawa N, Kashiwaba N, Matsumoto H, Kutsuma T, Yamaura T, Sekine A. A novel histamine 2(H2) receptor antagonist with gastroprotective activity. I. Synthesis and pharmacological evaluation of N-phenoxypropylacetamide derivatives with thioether function. Chem Pharm Bull (Tokyo) 1998; 46:610-5. [PMID: 9579036 DOI: 10.1248/cpb.46.610] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In an attempt to develop new types of anti-ulcer agents, a series of N-(phenoxypropyl)acetamide derivatives with a thioether moiety and their sulfur-oxidized analogues were synthesized and evaluated for histamine H2-receptor antagonistic activity, Ca antagonistic activity and gastric anti-secretory activity in the lumen-perfuseed rat. Selected compounds were also tested for gastroprotective activity, which was expected to be based on Ca antagonistic activity. Structure-activity relationships are discussed. As a thioether moiety, -CH2-S(O)p-CH2-Ar (Ar; phenyl or furyl) was found to be optimal for the above activities. Especially, N-[3-[(3-(piperidinomethyl) phenoxy]propyl]acetamide with a benzyl sulfinyl, benzylsulfonyl, furfurylsulfinyl or furfurylsulfonyl group showed potent gastroprotective activity upon oral administration in a rat model. These compounds are candidates for novel anti-ulcer drugs with gastric anti-secretory and gastroprotective activities. 2-Furfurylsulfinyl-N-[3-[(piperidinomethyl)phenoxy]propyl]ac etamide was the most potent among the compounds tested and was given the code designation FRG-8701.
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Affiliation(s)
- Y Sekine
- Pharmaceuticals Research Laboratories, Fujirebio Inc., Tokyo, Japan
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28
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Iwasaki T, Fujiwara D, Hirakawa N. Time-integrated radiotoxicity index for study of transmutation of long-lived nuclides. Progress in Nuclear Energy 1998. [DOI: 10.1016/s0149-1970(97)00052-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Hirakawa N, Naka T, Yamamoto I, Fukuda T, Tsuneyoshi M. Overexpression of bcl-2 protein in synovial sarcoma: a comparative study of other soft tissue spindle cell sarcomas and an additional analysis by fluorescence in situ hybridization. Hum Pathol 1996; 27:1060-5. [PMID: 8892591 DOI: 10.1016/s0046-8177(96)90284-1] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The expression of bcl-2 protein was analyzed in 19 synovial sarcomas and 29 additional soft tissue spindle cell sarcomas as controls by the immunohistologic staining of paraffin-embedded specimens; 15 of 19 (79%) synovial sarcoma cases were positive, but all other spindle cell sarcomas were negative including 20 leiomyosarcomas, 4 malignant peripheral nerve sheath tumors, and 4 fibrosarcomas. In 4 cases of bcl-2-positive synovial sarcoma (3 biphasic and 1 focally glandular type), bcl-2 protein staining was much stronger in the spindle cells than in the epithelial cells. A fluorescence in situ hybridization (FISH) analysis with centromeric and whole chromosome painting probes for chromosome 18 and X was performed on 7 synovial sarcomas. The six cases of bcl-2-positive synovial sarcoma consisted of five cases with the t(X; 18) and one case with tetrasomy of chromosome 18 and X. It has been speculated that bcl-2 protein expression is caused by the 14; 18 translocation and other abnormalities of chromosome 18. This study thus showed the feasibility of such a correlation between bcl-2 protein expression and the characteristic cytogenetic abnormality in the synovial sarcoma-X; 18 translocation. In addition, bcl-2 protein also appears to be a characteristic marker of synovial sarcoma and is thus considered to be potentially useful in distinguishing synovial sarcoma from other spindle cell sarcomas.
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Affiliation(s)
- N Hirakawa
- Second Department of Pathology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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30
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Abstract
BACKGROUND Hypopharyngeal squamous cell carcinomas (HPCS) are associated with an extremely poor prognosis. Generally, conventional clinicopathologic factors have only limited value as prognostic factors for this malignancy. It is therefore clinically important to identify new prognostic factors that accurately reflect the biologic aggressiveness of this malignancy. The amplification and overexpression of the cyclin D1 protooncogene have been reported in a variety of malignancies, and are thought to be related to tumor progression. Based on this phenomenon, the authors immunohistochemically evaluated overexpression of the cyclin D1 gene in 42 cases of primary HPCS. In addition, the immunohistochemical staining of the proliferation marker MIB-1 (Ki-67 antibody) was also performed. METHODS Formalin fixed, paraffin embedded biopsy specimens obtained prior to treatment were examined. Cyclin D1 and Ki-67 were detected using monoclonal antibodies by means of the streptavidin-biotin method. The relationship between cyclin D1 overexpression and the stage, histologic grade, presence of lymph node metastases, proliferation index, and survival was then statistically analyzed. The correlation between the proliferation index, other clinicopathologic factors, and survival was also evaluated. RESULTS Twenty-three (54.8%) HPCS specimens showed a 20% or greater immunoreactivity for cyclin D1. Cyclin D1 overexpression was related to cervical lymph node metastases (P = 0.037) but not to clinical stage, histologic grade, or the proliferation index. Cyclin D1 negative tumors were associated with a significantly better prognosis (P = 0.023), particularly in patients who underwent multimodality treatment. Finally, the MIB-1 labeling index showed no correlation with either the clinicopathologic parameters or overall survival. CONCLUSIONS Based on these findings, cyclin D1 immunohistochemical staining is considered to be useful, not only as a prognostic factor for HPCS, but also as a means of determining the optimum treatment for each individual patient. Conversely, the MIB-1 labeling index appears to have no clinical significance in HPCS.
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Affiliation(s)
- M Masuda
- Department of Otorhinolaryngology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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31
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Minakami R, Iida K, Hirakawa N, Sugiyama H. The expression of two splice variants of metabotropic glutamate receptor subtype 5 in the rat brain and neuronal cells during development. J Neurochem 1995; 65:1536-42. [PMID: 7561847 DOI: 10.1046/j.1471-4159.1995.65041536.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We previously reported that a variant with extra amino acid residues exists in the metabotropic glutamate receptor subtype 5 (mGluR5). Either of the two isoforms, named mGluR5b and mGluR5a for the isoforms with and without the inserted sequence, respectively, generated Ca(2+)-activated Cl- current when expressed in Xenopus oocytes. We herein report that these two isoforms are produced by the alternative splicing of the exon skipping type. When examined during the course of postnatal development, the major mGluR5 isotype mRNA was observed to switch from mGluR5a to mGluR5b in the rat hippocampus and the cerebral cortex. We also investigated two cell lines that could be differentiated into neuron-like cells in vitro. Whereas the mGluR5b mRNA was hardly detectable in either undifferentiated or differentiated NG108-15 cells, the relative amounts of the two variant mRNAs changed after the induction of differentiation in the P19 cells. An extracellular application of trans-D,L-1-amino-1,3-cyclopentanedicarboxylate on the neuron-like P19 cells induced intracellular Ca2+ mobilization, thus suggesting that the cells could express functional mGluR(s) coupled to phospholipase C and other components that could mediate the signal transduction pathway. This cell line may thus provide a model system for studying both mGluR5 expression and other mGluR-induced phenomena at the molecular level.
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Affiliation(s)
- R Minakami
- Department of Biology, Faculty of Science, Kyushu University, Fukuoka, Japan
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32
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Hirakawa N, Morimoto M, Hirakawa H, Harano K, Totoki T. Three-dimensional analysis of the intrinsic cardiac ganglia in a young dog. Fukuoka Igaku Zasshi 1995; 86:24-30. [PMID: 7729780] [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: 01/26/2023]
Abstract
The intrinsic ganglia of the heart of a young dog were studied by computer graphic reconstruction to determine the accurate location. The heart was embedded in celloidin, and transverse sections were cut. Using every third 60 microns section, a series of 49 sections was mapped. Three-dimensional (3D) images were constructed by a personal computer. Numerous intrinsic ganglia, most of which were located in the epicardiun, were observed. The intrinsic ganglia were found in the base of the aorta and pulmonary vessels and from the base of the superior vena cava to the right atrium, i.e., the sinoatrial nodal region. Using the 3D reconstruction technique, the locations of the intrinsic ganglia could be accurately identified. Furthermore, it was demonstrated that these ganglia formed several groups which formed a continuity. This study suggested that it was necessary to consider the existence of the numerous intrinsic ganglia, when we studied the cardiac innervation.
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Affiliation(s)
- N Hirakawa
- Department of Anesthesiology, Saga Medical School
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33
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Iwasaki T, Hirakawa N. Fast and perfect transmutation of minor actinides with ultra high flux reactor. Progress in Nuclear Energy 1995. [DOI: 10.1016/0149-1970(95)00055-o] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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Kataoka A, Nishida T, Sugiyama T, Hirakawa N, Yakushiji M. [Mutational activation of H-ras and K-ras (Codon 12,61) genes in 7,12 dimethylbenz(a)anthracene induced rat ovarian tumors]. Nihon Sanka Fujinka Gakkai Zasshi 1993; 45:119-24. [PMID: 8429245] [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
We had studied the histogenesis and p21 expression in ovarian tumor induced by 7,12-dimethylbenz(a)anthracene (DMBA). The present study was done to elucidate point mutation of the ras gene in tumors. Cases with immunohistological p21 expression; 3 adenomas, 5 adenocarcinomas and 2 sarcomas were examined by polymerase chain reaction (PCR). 1) The products of PCR were confirmed the presence of amplified sequences by electrophoresis. 2) No point mutation of H-ras (Codon 12,61) or K-ras (Codon 12,61) genes was found in the ovarian tumors induced by DMBA. 3) These results suggested that the mutational activation of ras genes in tumorigenesis was dependent on another mechanism.
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Affiliation(s)
- A Kataoka
- Department of Obstetrics and Gynecology, Kurume University School of Medicine
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35
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Abstract
The present study was performed to determine the origin of cardiac sympathetic postganglionic fibers and to demonstrate their distribution in the heart. Young dogs were used in this study. Wheat germ agglutinin-horseradish peroxidase (WGA-HRP) was injected into various regions of the heart, and cholera toxin B subunit (CTB) and WGA-HRP were injected into the middle cervical ganglion or the stellate ganglion. In our retrograde axonal transport study, a large number of WGA-HRP-labeled cells were observed in the middle cervical and stellate ganglia bilaterally. Only a small number of the labeled cells were observed in the superior cervical ganglia bilaterally. In the anterograde axonal transport study, CTB and WGA-HRP labels showed terminal-like structures in the intrinsic ganglia located in the sinoatrial node, left atrium, and the origin of the ascending aorta. The labeled fibers were also observed around the coronary arteries.
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Affiliation(s)
- N Hirakawa
- Surgical Center, Saga Medical School, Japan
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36
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Kataoka A, Nishida T, Sugiyama T, Hirakawa N, Maruuchi T, Imaishi K, Yakushiji M. [Immunohistochemical studies of recessive oncogene p53 and N-myc oncogene expression in 7, 12 dimethylbenz (a) anthracene-induced rat ovarian tumors]. Nihon Sanka Fujinka Gakkai Zasshi 1992; 44:391-6. [PMID: 1318915] [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: 12/26/2022]
Abstract
In the present study, the expressions of p53 and N-myc gene were analyzed immunohistochemically in rat ovarian tumors induced by 7,12 dimethylbenz (a) anthracene (DMBA). 1) p53 could be seen in the nucleolei of tumor cells. The positive rates were: adenomas 17%, adenocarcinomas 37%, sarcomas 0%, mixed müllerian tumor 0% and epidermal cysts 100%. Neither the serial-allografted tumor nor DMBA-OC-1 was positive. 2) N-myc could be seen in the cytoplasm and perinuclear cytoplasm of tumor cells. The positive rates were: adenomas 33%, adenocarcinomas 77%, sarcomas 100%, mixed müllerian tumors 100% and epidermal cysts 100%. Both the serial-allografted tumor and DMBA-OC-1 were positive. 3) The positive rates in both p53 and p21 were: adenocarcinoma 20% and epidermal cysts 100%. The positive rates in both N-myc and p21 at the were: adenoma 17%, adenocarcinoma 50%, sarcoma 33%. Both the serial-allografted tumor and DMBA-OC-1 were positive. Only two cases were positive for p53, N-myc and p21. p53 was detected in most of the adenomas. 4) The positive rate for both N-myc and p21 was higher than that for both p53 and p21. This was similar to other reports. The results suggested that p53 plays a role in precancerous tumor as a recessive oncogene. It was supposed that tumors with N-myc gene expression were had malignant growth characteristics.
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MESH Headings
- 9,10-Dimethyl-1,2-benzanthracene
- Adenocarcinoma/chemically induced
- Adenocarcinoma/genetics
- Adenoma/chemically induced
- Adenoma/genetics
- Animals
- Female
- Gene Expression Regulation, Neoplastic
- Genes, myc
- Genes, p53
- Immunohistochemistry
- Neoplasms, Germ Cell and Embryonal/chemically induced
- Neoplasms, Germ Cell and Embryonal/genetics
- Ovarian Neoplasms/chemically induced
- Ovarian Neoplasms/genetics
- Rats
- Rats, Inbred F344
- Sarcoma, Experimental/chemically induced
- Sarcoma, Experimental/genetics
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Affiliation(s)
- A Kataoka
- Department of Obstetrics and Gynecology, Kurume University School of Medicine
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37
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Qiu SM, Wen G, Hirakawa N, Soloway RD, Hong NK, Crowther RS. Glycochenodeoxycholic acid inhibits calcium phosphate precipitation in vitro by preventing the transformation of amorphous calcium phosphate to calcium hydroxyapatite. J Clin Invest 1991; 88:1265-71. [PMID: 1655828 PMCID: PMC295595 DOI: 10.1172/jci115430] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Calcium hydroxyapatite can be a significant component of black pigment gallstones. Diverse molecules that bind calcium phosphate inhibit hydroxyapatite precipitation. Because glycine-conjugated bile acids, but not their taurine counterparts, bind calcium phosphate, we studied whether glycochenodeoxycholic acid inhibits calcium hydroxyapatite formation. Glycochenodeoxycholic acid (2 mM) totally inhibited transformation of amorphous calcium phosphate microprecipitates to macroscopic crystalline calcium hydroxyapatite. This inhibition was not mediated by decreased Ca2+ activity. Taurocholic acid (2-12 mM) did not affect hydroxyapatite formation, but antagonized glycochenodeoxycholic acid. Both amorphous and crystalline precipitates contained a surface fraction relatively rich in phosphate. The surface phosphate content was diminish by increasing glycochenodeoxycholic acid concentrations, and this relationship was interpreted as competition between bile acid and HPO4(-4) for binding sites on the calcium phosphate surface. A phosphate-rich crystal surface was associated with rapid transition from amorphous to crystalline states. These results indicate that glycochenodeoxycholic acid prevents transformation of amorphous calcium phosphate to crystalline hydroxyapatite by competitively inhibiting the accumulation of phosphate on the crystal embryo surface.
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Affiliation(s)
- S M Qiu
- Department of Internal Medicine, University of Texas Medical Branch, Galveston 77550
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38
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Morimoto M, Harano K, Hirakawa N, Totoki T. Diffusion of alcohol upon application of neuroadenolysis of the pituitary gland (NALP). An experimental study using HRP and WGA-HRP in the cat. Fukuoka Igaku Zasshi 1991; 82:475-9. [PMID: 1721037] [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: 12/28/2022]
Abstract
Diffusion of alcohol in neuroadenolysis of pituitary gland (NALP) was observed by injection of horseradish peroxidase (HRP) or wheat germ agglutinin-HRP conjugates (WGA-HRP) into the pituitary of the cat. After small-amount injection of WGA-HRP into the pituitary, WGA-HRP labeling was observed markedly around the third ventricle and the ventral part of the hypothalamus. While, in large-amount injection of WGA-HRP, it extended to all of the ventricular systems and dipped into the substances of the brain and spinal cord through the ependyma. These results suggest that the main site of action for alcohol injected into the pituitary is probably the hypothalamus.
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Affiliation(s)
- M Morimoto
- Department of Anesthesiology, Saga Medical School
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39
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Kataoka A, Hirakawa N, Sugiyama T, Higashijima T, Nishida T, Yakushiji M. [Immunohistochemical studies of ras oncogene product p21 in 7,12 dimethylbenz (a) anthracene-induced rat ovarian tumors]. Nihon Sanka Fujinka Gakkai Zasshi 1991; 43:1209-13. [PMID: 1919181] [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: 12/29/2022]
Abstract
In the present study, ras oncogene product p21 was analyzed immunohistochemically in rat ovarian tumors induced by 7,12 dimethylbenz (a) anthracene (DMBA). 1) After 28-38 (average 35.6) weeks, the tumors -6 adenomas, 30 adenocarcinomas, 3 sarcomas, one mixed müllerian tumor and 2 epidermal cysts--were produced in the rat ovaries. 2) The p21 positive reactions could be seen in the cytoplasm of the tumor cells. The positive rates were as follows: adenomas 83%, adenocarcinomas 57%, sarcomas 67%, mixed müllerian tumors 0%, epidermal cysts 100%, in which the positive reactions were obtained in squamous cells. Both of the serial-allografted tumor and DMBA-OC-1 were positive. 3) The present study showed that the ras oncogene is not a specific gene in ovarian sarcoma or in other tumors. 4) The present study has suggested that the ras oncogene plays a role in tumor genesis including benign tumors, by showing p21 positive in adenomas and epidermal cysts.
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Affiliation(s)
- A Kataoka
- Department of Obstetrics and Gynecology, Kurume University School of Medicine
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40
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Asato F, Hirakawa N, Oda M, Iyatomi I, Nagasawa I, Katekawa Y, Totoki T. A median epidural septum is not a common cause of unilateral epidural blockade. Anesth Analg 1990; 71:427-9. [PMID: 2205132 DOI: 10.1213/00000539-199010000-00020] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- F Asato
- Department of Anesthesiology, Saga Medical School, Japan
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41
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Tamura K, Takeuchi M, Hirakawa N, Toyoda K, Minoda M. Successful treatment for perinephric abscess with recombinant human granulocyte colony-stimulating factor following nephrectomy in a patient of myelodysplastic syndrome: a case report. Biotherapy 1990; 2:223-6. [PMID: 1698422 DOI: 10.1007/bf02173523] [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] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The 35-year-old man with myelodysplastic syndrome (MDS) and granulocytopenia with dry cough and high fever was eventually found to have a left perinephric abscess of Staphylococcus aureus. He underwent left nephrectomy and drainage of perinephric space in conjunction with appropriate antibiotics. However, because of persistent granulocytopenia, Staph. aureus never cleared up with formation of only poor granulation. Recombinant human granulocyte colony-stimulating factor (G-CSF) was added to the above treatment leading to prompt improvement in granulocytopenia and emergence of the good granulation tissue. G-CSF will probably become one of the important agents in treating MDS with granulocytopenia.
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Affiliation(s)
- K Tamura
- Department of Internal Medicine, Miyazaki Prefectural Hospital, Japan
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Asato F, Hirakawa N, Araki K, Nagasawa I, Uchiyama A, Watanabe N, Totoki T. A technique for obtaining successful sacral spread with continuous lumbar epidural anesthesia. Anesth Analg 1990; 70:662-4. [PMID: 2344062 DOI: 10.1213/00000539-199006000-00015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [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)
- F Asato
- Department of Anesthesiology, Saga Medical School, Japan
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Wada M, Komoda M, Mise J, Hirakawa N, Nakaoka K. [A study on the midband lipoproteins-their electrophoretic appearances and occurrences (author's transl)]. Rinsho Byori 1976; 24:406-10. [PMID: 184320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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44
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Tsuji H, Hirakawa N, Nakaoka H, Komoda M. [Diagnosis of serum lipoprotein abnormalities with combined polyacrylamide gel and paper electrophoresis for therapeutic purpose (author's transl)]. Rinsho Byori 1975; 23:563-6. [PMID: 1237026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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45
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Kubota Y, Ueki H, Hirakawa N, Shoji S. [Biochemical studies on human salivary proteins. IX. Cleavage and modification of saliva-parotin-A by chemical reagents and their effects on the biological activities]. YAKUGAKU ZASSHI 1972; 92:801-7. [PMID: 4676217 DOI: 10.1248/yakushi1947.92.7_801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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46
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Wada M, Minamizono T, Hirakawa N, Sakota K, Sakaguchi R. [Determination of serum total lipids and its clinical significance. II. Significance in detection and management of serum lipid abnormalities]. Rinsho Byori 1970; 18:829-32. [PMID: 5533739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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47
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Wada M, Sakota K, Minamizono T, Sakaguchi R, Hirakawa N. [Determination of total serum lipids and its clinical significance. 1. A new determination method using SPV reaction]. Rinsho Byori 1970; 18:711-4. [PMID: 5530687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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