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Nishimoto F, Okuno K, Kuragaki C, Miyanishi K, Boku K, Yamamoto T. Hemoperitoneum as the first manifestation of acute leukemia. Gynecol Obstet Invest 2008; 66:12-3. [PMID: 18230909 DOI: 10.1159/000114249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Accepted: 09/19/2007] [Indexed: 11/19/2022]
Abstract
A rare case of a 31-year-old woman is reported who had massive intraperitoneal bleeding caused by ovarian hemorrhage as the first manifestation of acute leukemia. Preoperative laboratory findings revealed severe anemia (Hb 6.6 g/dl) and thrombocytopenia (1.5 x 10(4)/mm(3)) but normal leukocyte count (3.9 x 10(3)/mm(3)). After surgery, blast cells were found in her peripheral blood and she was diagnosed with M0 type acute myeloid leukemia. In addition, histopathology revealed infiltration of leukemic cells in the resected ovary.
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Affiliation(s)
- F Nishimoto
- Department of Obstetrics and Gynecology, Sakai Municipal Hospital, Sakai, Osaka, Japan
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Hayashi H, Ohno T, Nishiyama K, Boku K, Katori M, Majima M. Transient prevention of ethanol-induced gastric lesion by capsaicin due to release of endogenous calcitonin gene-related peptide in rats. Jpn J Pharmacol 2001; 86:351-4. [PMID: 11488437 DOI: 10.1254/jjp.86.351] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Pre-exposure of the rat gastric mucosa to capsaicin reduced the mucosal lesion by 50% ethanol to 1/4. Treatment with an antagonist of calcitonin gene-related peptide (CGRP), CGRP (8-37), nullified the effect of capsaicin. During constant perfusion of the gastric lumen with physiological saline + pepstatin, the CGRP level was not increased by 50% ethanol, but it showed a peak (802.5 +/- 145.7 pg/2 min) after 1.6 mM capsaicin. Four minutes after capsaicin, the CGRP level was kept at a high level and the gastric lesion was markedly reduced by re-exposure of the mucosa to 50% ethanol. At 20-30 min after capsaicin, the CGRP levels returned to the resting level and the reddened area by 50% ethanol was not reduced. It was concluded that capsaicin transiently prevented the mucosal lesion through CGRP release.
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Affiliation(s)
- H Hayashi
- Department of Pharmacology, Kitasato University School of Medicine, Kanagawa, Japan
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Boku K, Ohno T, Saeki T, Hayashi H, Hayashi I, Katori M, Murata T, Narumiya S, Saigenji K, Majima M. Adaptive cytoprotection mediated by prostaglandin I(2) is attributable to sensitization of CRGP-containing sensory nerves. Gastroenterology 2001; 120:134-43. [PMID: 11208722 DOI: 10.1053/gast.2001.20916] [Citation(s) in RCA: 58] [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: 12/28/2022]
Abstract
BACKGROUND & AIMS The phenomenon by which the gastric mucosa is protected in response to mild irritants has been called adaptive cytoprotection, a mechanism believed to be related to production of endogenous prostaglandins (PGs). We tested whether PGs generated by mild irritant prevent injury through the release of calcitonin gene-related peptide (CGRP) from the sensory nerves using prostanoid receptor-knockout mice. METHODS The stomach was doubly cannulated and perfused with 1 mol/L NaCl or 50% ethanol. CGRP levels in the perfusate were determined by enzyme immunoassay, and the injured area was estimated at the end of perfusion. RESULTS Preperfusion with mildly hypertonic saline (1 mol/L NaCl) increased generation of gastric PGE(2) and PGI(2) and reduced ethanol-induced mucosal damage. Exposure of ethanol after 1 mol/L NaCl increased intragastric CGRP levels from 166 +/- 27 to 713 +/- 55 pg/2 min (n = 4, P < 0.05), and the protective action of 1 mol/L NaCl was inhibited by indomethacin treatment. CGRP antagonist blocked 1 mol/L NaCl-induced protective effect. Intragastric perfusion of 50% ethanol after administration of PGI(2), but not of PGE(2), increased CGRP levels. Application of 1 mol/L NaCl to IP receptor-knockout mice (IP(-/-)) did not elicit the protective effects seen in the wild-type on ethanol-induced gastric mucosal lesions. Protective effect of 1 mol/L NaCl was observed in EP3 receptor-knockout mice (EP3(-/-)). CGRP level during ethanol perfusion was not increased in IP(-/-) but was increased in EP3(-/-) and wild-type counterparts after preperfusion of 1 mol/L NaCl. CONCLUSIONS These results indicate that the endogenous PGI(2) generated by 1 mol/L NaCl may have a protective role in gastric mucosal injury through enhancement of CGRP release from gastric mucosa. This mechanism may explain the adaptive cytoprotection observed after treatment with mild irritants.
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Affiliation(s)
- K Boku
- Department of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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Abstract
BACKGROUND Micturitional disturbance is known to occur in neuro-Behçet's syndrome (NBS). However, its pathophysiology is uncertain and few data are available concerning urodynamic findings. We describe our findings on micturitional histories and urodynamic studies in patients with NBS. METHODS A history of urinary symptoms was obtained from nine patients with NBS [seven male, two female, aged 26 to 54 years; mean, 41 years]. Neurological and CT/MRI findings indicated that their lesions were located mainly in the cerebral cortex, basal ganglia, cerebellum, brainstem and the spinal cord. Symptomatic patients underwent urodynamic studies, including measurement of post-micturition residuals, urethral pressure profilometry and EMG cystometry. RESULTS Six of the nine patients (67%) had urinary symptoms that included diurnal urinary frequency in five, sensation of urgency in five, urge urinary incontinence in five, voiding difficulty in five and nocturnal urinary frequency in four. None had urinary retention. Urodynamic studies performed in six patients showed post-micturition residuals in five (50-180 ml), increased maximum urethral closure pressure in two, decrease in four and increase in one of bladder capacities, detrusor hyperreflexia in five, decreased bladder sensation in one, brisk bulbocavernosus reflex in four, detrusor-sphincter dyssynergia in two and neurogenic sphincter EMG in one. CONCLUSION Our results indicate that micturitional disturbance is not rare in patients with NBS. Supranuclear pelvic nerve dysfunction seems to be mainly responsible for the disturbance.
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Affiliation(s)
- R Sakakibara
- Department of Neurology, Chiba University School of Medicine, Japan.
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Saeki T, Ohno T, Boku K, Saigenji K, Katori M, Majima M. Mechanism of prevention by capsaicin of ethanol-induced gastric mucosal injury--a study in the rat using intravital microscopy. Aliment Pharmacol Ther 2000; 14 Suppl 1:135-44. [PMID: 10807415 DOI: 10.1046/j.1365-2036.2000.014s1135.x] [Citation(s) in RCA: 19] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Capsaicin acts specifically on primary afferent neurones to release neuropeptides, including calcitonin gene-related peptide (CGRP), and prevents ethanol-induced mucosal injury. AIM To investigate the microvascular changes in the gastric mucosa in response to ethanol using intravital microscopy to elucidate the mechanism of capsaicin-induced gastroprotection. METHODS The posterior gastric wall in the rat was secured in an observation chamber and perfused with Tyrode's solution. The microcirculation was observed through a window made by removing a limited area of smooth muscle. RESULTS Ethanol (50%) applied to the mucosa constricted the collecting venules and venules but dilated arterioles. The constriction of the collecting venules resulted in mucosal congestion, which caused mucosal injury. Application of capsaicin to the mucosa dilated the arterioles but not the collecting venules or venules. Arteriolar dilation was inhibited by a CGRP antagonist, CGRP-(8-37). Prior application of capsaicin prevented ethanol-induced constriction of the collecting venules, and the action of capsaicin was inhibited by prior application of CGRP-(8-37). CONCLUSIONS The results suggest that the inhibition of ethanol-induced gastric injury by capsaicin is attributable to the suppression of collecting venule constriction, via CGRP release.
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Affiliation(s)
- T Saeki
- Department of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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Ohno T, Katori M, Majima M, Saeki T, Boku K, Nishiyama K, Hayashi H, Saigenji K. Dilatation and constriction of rat gastric mucosal microvessels through prostaglandin EP2 and EP3 receptors. Aliment Pharmacol Ther 1999; 13:1243-50. [PMID: 10468708 DOI: 10.1046/j.1365-2036.1999.00577.x] [Citation(s) in RCA: 16] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND Prostaglandin (PG)E2 has both a vasodilating action and a protective function in the gastric mucosa. There are four subtypes of PGE2-sensitive, or EP, receptors. AIM To identify the subtype of EP receptors in the microvessels of the rat gastric mucosa using EP2 and EP3 receptor agonists. METHODS The posterior wall of the anaesthetized rat stomach was secured in a chamber and superfused with Tyrode's solution, and the gastric microcirculation of the mucosal base was observed through a window with transillumination. PGE2 and its derivatives (20 microL) were applied topically in the window. RESULTS PGE2 (0.001-10 micromol/L), misoprostol (EP2/EP3 receptor agonist; 0.01-100 micromol/L) and butaprost (EP2 receptor agonist; 1-1000 micromol/L) dilated the arterioles dose-dependently, but M&B 28 767 (EP3 receptor agonist; 0.001-10 micromol/L) did not alter their diameters. M&B 28 767 constricted the venules and collecting venules dose-dependently whereas butaprost dilated them. PGE2 and misoprostol had bell-shaped dose-response curves: constriction by low doses of PGE2 and misoprostol (0.001-0.1 micromol/L and 0.01-1 micromol/L) and dilation by high doses of PGE2 and misoprostol (0.1-100 micromol/L and 1-100 micromol/L). CONCLUSIONS These results suggest that PGE2 dilated both arterioles and venules in the rat gastric mucosa through the EP2 receptors and constricted the venules through the EP3 receptors.
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Affiliation(s)
- T Ohno
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan.
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Yamazaki S, Boku K, Ueki Y, Kizaki Y, Yoshida K, Miyake K, Shibata R, Noguchi M, Yamaguchi K. [Case of infectious abdominal aneurysm complicating influenza septicemia]. Nihon Naika Gakkai Zasshi 1999; 88:342-3. [PMID: 10341600] [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: 02/12/2023]
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Mase T, Kato S, Nagata Y, Boku K, Aoyama T, Tsuchioka H. [Successful second stage operations for bilateral giant bullae with cardiovascular disease by thoracotomy and thoracoscopic surgery: a case report]. Kyobu Geka 1996; 49:952-5. [PMID: 8913073] [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: 02/03/2023]
Abstract
A 65-year-old male was admitted to our hospital because of bilateral giant bullae and right side pneumothorax. He had had a myocardial infarction and had been receiving medications. Considering his age, ischemic heart disease and hypertension, we excised the bullae in two operations. The first operation was open chest bullectomy of a giant bulla and small bulla on the right side. After this procedure, his clinical course was uneventful. In the second operation, thoracoscopic excision of the left side giant bulla was performed using only one endoscopic stapler by rotating each side of the bulla and making a clear excision line between the bulla and normal lung. His post operative course was excellent and he was discharged from our hospital on the 15th day after the second operation.
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Affiliation(s)
- T Mase
- Second Department of Surgery, Aichi Medical University, Japan
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Tatsuta M, Yamada T, Ikeda M, Okuyama M, Kimura F, Ishikawa K, Kawasaki T, Satomi T, Boku K, Hanai J. [Two cases of metastatic lung tumor from leiomyosarcoma of the uterus]. Kyobu Geka 1994; 47:553-6. [PMID: 8057542] [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: 01/28/2023]
Abstract
Three pulmonary resections were performed for two cases of metastatic lung tumor from uterine leiomyosarcoma. Case 1 was diagnosed as myoma uteri. Preoperative chest X-ray examination showed an abnormal shadow in the left upper lobe. Postoperative diagnosis was leiomyosarcoma. During radiotherapy for the pelvic lesion, the lung tumor was growing very rapidly and micrometastases were detected bilaterally without distant metastasis. Bilateral pulmonary resections were performed. Three months and 15 days later, second left pulmonary and thoracic wall resections were performed because of lung and pleural recurrence. Seven months after the first pulmonary operation, she died of systemic metastases. Case 2 was admitted to the hospital because of genital bleeding and diagnosed leiomyosarcoma of the uterus. The patient had a metastatic lung tumor in the left lower lobe preoperatively. Eighteen days after hysterectomy, left lower lobectomy was performed because progressive hemoptysis occurred for rapidly enlarged metastatic lesion. She died of intrapelvic bleeding three months after the operation without respiratory symptom. The prognosis of synchronously found out lung metastasis from uterine leiomyosarcoma is very poor. Neither chemotherapy nor radiotherapy is effective. Although it's difficult and controversial to decide the surgical indication, we need to operate on as soon as possible when there is no other distant metastasis. Even if the timing of operation is late, we can find the surgical significance of pulmonary resection for reduction of respiratory symptoms and probability of longer survival.
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Affiliation(s)
- M Tatsuta
- Department of Surgery, Sakai Municipal Hospital, Japan
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Asai T, Nagata Y, Nogaki H, Saigusa H, Boku K, Tsuchioka H. [A case of supravalvular aortic stenosis treated by Doty's operation]. Kyobu Geka 1990; 43:223-5. [PMID: 2319721] [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 11-year-old boy with supravalvular aortic stenosis was treated by extended aortoplasty (Doty's operation) with excellent results. The extended aortoplasty provided satisfactory relief of aortic stenosis and improved function of the aortic valve.
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Affiliation(s)
- T Asai
- Second Department of Surgery, Aichi Medical University
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Katoh S, Nagata Y, Shioi K, Saigusa H, Boku K, Tsuchioka H. [A case of systemic origin of an aberrant artery to the basal segments of the left lung]. Nihon Kyobu Geka Gakkai Zasshi 1990; 38:154-9. [PMID: 2329296] [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 thirteen-year-old asymptomatic boy was referred to our hospital because of a cardiac murmur detected on a routine physical examination at school. A plane chest radiography showed increased vascular markings in the left lower field. An Aortogram revealed a large artery arising from the descending aorta and suppling the left posterior basal segment which had no pulmonary arteries. A bronchogram showed no abnormal findings in the bronchial tree. A clinical diagnosis of systemic origin of an aberrant artery to the basal segments of the left lung was made, and left lower lobectomy was performed successfully. We discussed the difference of this anomaly from pulmonary sequestration as well as the surgical procedure.
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Affiliation(s)
- S Katoh
- Second Department of Surgery, Aichi Medical University, Japan
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Sakai T, Matsumoto N, Boku K, Endoh E, Takaori M. [The effect of removal of the organs in the splanchnic area on the biodegradation of halothane in dogs]. Masui 1988; 37:1478-83. [PMID: 3236400] [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: 01/04/2023]
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13
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Ohta T, Kato R, Boku K, Kondo M, Kazui H, Naiki K, Tsuchioka H, Inoue Y, Noguchi H, Takumi Y. A case of Vibrio vulnificus infection. Jpn J Surg 1988; 18:580-7. [PMID: 3068394 DOI: 10.1007/bf02471493] [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: 01/04/2023]
Abstract
Vibrio vulnificus, a recently described strain of the halophilic Vibrio species, was isolated from the blood of a 73-year-old man, who developed rapidly progressive wound infection and fatal septicemia. Twenty-one patients with Vibrio vulnificus infection have been reported in the Japanese literature. Vibrio vulnificus most frequently causes primary septicemia and necrotising cellulitis after the eating of raw fish or shellfish or after exposure to seawater. The infection is characterized by its occurring during the warm months of the year, in patients with underlying diseases, especially liver diseases, and the mortality rate is surprisingly high. Clinicians should therefore consider the possibility of Vibrio vulnificus infection in the differential diagnosis of severe wound infections. Early surgical intervention and intensive antibiotic therapy are recommended for preventing the progress of the septicemia.
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Affiliation(s)
- T Ohta
- Second Department of Surgery, Aichi Medical University
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Nagashima M, Iwai N, Boku K, Tauchi N, Suzuki C. [Proceedings: Severe patent ductus arteriosus in infants]. Jpn Circ J 1975; 39:875. [PMID: 1160073] [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: 12/25/2022]
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Tauchi N, Nagashima M, Iwai N, Boku K, Suzuki C. [Proceedings: Congenital absence of the pulmonary valve: report of 3 cases]. Jpn Circ J 1975; 39:874-5. [PMID: 1160070] [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: 12/25/2022]
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Boku K, Nagashima M, Iwai N, Tauchi N, Suzuki C. [Proceedings: Case of interrupted aortic arch]. Jpn Circ J 1975; 39:871. [PMID: 1160058] [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: 12/25/2022]
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Iizuka R, Boku K, Kobayashi T, Ono T. [Fertility potential of frozen and stored human spermatozoa]. Horumon To Rinsho 1972; 20:411-6. [PMID: 4673191] [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: 01/11/2023]
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Iizuka R, Kai H, Shirai E, Boku K. [Significance and methodology in the study of the uterine milk]. Sanfujinka No Jissai 1970; 19:1139-45. [PMID: 5536845] [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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19
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Boku K, Hashiguchi K. [Clinical practice of gynecology and obstetrics in Korea]. Sanfujinka No Jissai 1970; 19:1038-46. [PMID: 5536200] [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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