201
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Kamogawa Y, Kaneko A, Tomimatu M, Kurihara T, Hashimoto E, Hisamitu T, Obata H. [A case of sclerosing hepatic carcinoma which showed hypercalcemia and responded to various therapeutic modalities]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1987; 84:758-62. [PMID: 3599507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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202
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Yashiro K, Nagasako K, Hasegawa K, Maruyama M, Suzuki S, Obata H. Esophageal lesions in intestinal Behçet's disease. Endoscopy 1986; 18:57-60. [PMID: 3956440 DOI: 10.1055/s-2007-1018328] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Esophageal lesions are rarely seen in patients with intestinal Behçet's disease. Three patients with esophageal lesions (dissection of esophageal mucosa, esophageal ulcer, esophageal varices) were observed among 15 patients with intestinal Behçet's disease or non-specific simple ulcer (1974-1984). Two-thirds of these fifteen patients had fully developed or suspected Behçet's disease, and one-third had no symptoms typical of Behçet's disease. They are classified as non-specific simple ulcer. The average age of the 15 patients was 43 years, all patients but one were male. The recurrence rate after surgical treatment was 70%, that of medical treatment was 90%.
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203
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Okuda K, Ohtsuki T, Obata H, Tomimatsu M, Okazaki N, Hasegawa H, Nakajima Y, Ohnishi K. Natural history of hepatocellular carcinoma and prognosis in relation to treatment. Study of 850 patients. Cancer 1985. [PMID: 2990661 DOI: 10.1002/1097-0142(19850815)56:43.0.co;2-e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A total of 850 patients with hepatocellular carcinoma seen during the last 8 years were analyzed retrospectively for survival in relation to treatment and disease stage. A new staging scheme based on tumor size, ascites, jaundice and serum albumin was used. Clearly, the prognosis depended on disease stage. The median survival of 229 patients who received no specific treatment was 1.6 months, 0.7 month for Stage III patients, 2.0 months for Stage II, and 8.3 months for Stage I. The median survival of Stage I patients who had hepatic resection (n = 115) was 25.6 months and Stage II patients with resection (n = 42) was 12.2 months. In patients who had a small cancer (less than or equal to 25% of liver area in size) the median survival was 29.0 months. Survival of the surgically treated patients, which represented a highly selected group, was better than that of medically treated patients of a comparable stage. Median survival of Stage I medically treated patients (n = 124) was 9.4 months, for Stage II (n = 290) 3.5 months, and for Stage III (n = 50) 1.6 months. Medical treatment prolonged survival in Stage II and III patients, but not in Stage I. Transcatheter arterial embolization gave a better survival compared with chemotherapy, whether intra-arterial bolus administration of mitomycin C, systemic mitomycin C, or oral/rectal tegafur, in Stage II. Among various chemotherapeutic modalities, intra-arterial bolus injection was superior to systemic chemotherapy in survival in Stage II. In Stage III, chemotherapy improved survival as compared with no specific treatment. The major causes of death were hepatic failure and gastrointestinal bleeding, probably due to the coexistent advanced cirrhosis. These results in survival are much improved over the past reports, and the differences are probably a result of earlier diagnosis and frequent hepatic resections.
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204
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Okuda K, Ohtsuki T, Obata H, Tomimatsu M, Okazaki N, Hasegawa H, Nakajima Y, Ohnishi K. Natural history of hepatocellular carcinoma and prognosis in relation to treatment. Study of 850 patients. Cancer 1985. [PMID: 2990661 DOI: 10.1002/1097-0142(19850815)56] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A total of 850 patients with hepatocellular carcinoma seen during the last 8 years were analyzed retrospectively for survival in relation to treatment and disease stage. A new staging scheme based on tumor size, ascites, jaundice and serum albumin was used. Clearly, the prognosis depended on disease stage. The median survival of 229 patients who received no specific treatment was 1.6 months, 0.7 month for Stage III patients, 2.0 months for Stage II, and 8.3 months for Stage I. The median survival of Stage I patients who had hepatic resection (n = 115) was 25.6 months and Stage II patients with resection (n = 42) was 12.2 months. In patients who had a small cancer (less than or equal to 25% of liver area in size) the median survival was 29.0 months. Survival of the surgically treated patients, which represented a highly selected group, was better than that of medically treated patients of a comparable stage. Median survival of Stage I medically treated patients (n = 124) was 9.4 months, for Stage II (n = 290) 3.5 months, and for Stage III (n = 50) 1.6 months. Medical treatment prolonged survival in Stage II and III patients, but not in Stage I. Transcatheter arterial embolization gave a better survival compared with chemotherapy, whether intra-arterial bolus administration of mitomycin C, systemic mitomycin C, or oral/rectal tegafur, in Stage II. Among various chemotherapeutic modalities, intra-arterial bolus injection was superior to systemic chemotherapy in survival in Stage II. In Stage III, chemotherapy improved survival as compared with no specific treatment. The major causes of death were hepatic failure and gastrointestinal bleeding, probably due to the coexistent advanced cirrhosis. These results in survival are much improved over the past reports, and the differences are probably a result of earlier diagnosis and frequent hepatic resections.
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205
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Okuda K, Ohtsuki T, Obata H, Tomimatsu M, Okazaki N, Hasegawa H, Nakajima Y, Ohnishi K. Natural history of hepatocellular carcinoma and prognosis in relation to treatment. Study of 850 patients. Cancer 1985. [PMID: 2990661 DOI: 10.1002/1097-0142(19850815)56:4<918::aid-cncr2820560437>3.0.co;2-e] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A total of 850 patients with hepatocellular carcinoma seen during the last 8 years were analyzed retrospectively for survival in relation to treatment and disease stage. A new staging scheme based on tumor size, ascites, jaundice and serum albumin was used. Clearly, the prognosis depended on disease stage. The median survival of 229 patients who received no specific treatment was 1.6 months, 0.7 month for Stage III patients, 2.0 months for Stage II, and 8.3 months for Stage I. The median survival of Stage I patients who had hepatic resection (n = 115) was 25.6 months and Stage II patients with resection (n = 42) was 12.2 months. In patients who had a small cancer (less than or equal to 25% of liver area in size) the median survival was 29.0 months. Survival of the surgically treated patients, which represented a highly selected group, was better than that of medically treated patients of a comparable stage. Median survival of Stage I medically treated patients (n = 124) was 9.4 months, for Stage II (n = 290) 3.5 months, and for Stage III (n = 50) 1.6 months. Medical treatment prolonged survival in Stage II and III patients, but not in Stage I. Transcatheter arterial embolization gave a better survival compared with chemotherapy, whether intra-arterial bolus administration of mitomycin C, systemic mitomycin C, or oral/rectal tegafur, in Stage II. Among various chemotherapeutic modalities, intra-arterial bolus injection was superior to systemic chemotherapy in survival in Stage II. In Stage III, chemotherapy improved survival as compared with no specific treatment. The major causes of death were hepatic failure and gastrointestinal bleeding, probably due to the coexistent advanced cirrhosis. These results in survival are much improved over the past reports, and the differences are probably a result of earlier diagnosis and frequent hepatic resections.
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206
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Okuda K, Ohtsuki T, Obata H, Tomimatsu M, Okazaki N, Hasegawa H, Nakajima Y, Ohnishi K. Natural history of hepatocellular carcinoma and prognosis in relation to treatment. Study of 850 patients. Cancer 1985. [PMID: 2990661 DOI: 10.1002/1097-0142(19850815)56:4%3c918::aid-cncr2820560437%3e3.0.co;2-e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A total of 850 patients with hepatocellular carcinoma seen during the last 8 years were analyzed retrospectively for survival in relation to treatment and disease stage. A new staging scheme based on tumor size, ascites, jaundice and serum albumin was used. Clearly, the prognosis depended on disease stage. The median survival of 229 patients who received no specific treatment was 1.6 months, 0.7 month for Stage III patients, 2.0 months for Stage II, and 8.3 months for Stage I. The median survival of Stage I patients who had hepatic resection (n = 115) was 25.6 months and Stage II patients with resection (n = 42) was 12.2 months. In patients who had a small cancer (less than or equal to 25% of liver area in size) the median survival was 29.0 months. Survival of the surgically treated patients, which represented a highly selected group, was better than that of medically treated patients of a comparable stage. Median survival of Stage I medically treated patients (n = 124) was 9.4 months, for Stage II (n = 290) 3.5 months, and for Stage III (n = 50) 1.6 months. Medical treatment prolonged survival in Stage II and III patients, but not in Stage I. Transcatheter arterial embolization gave a better survival compared with chemotherapy, whether intra-arterial bolus administration of mitomycin C, systemic mitomycin C, or oral/rectal tegafur, in Stage II. Among various chemotherapeutic modalities, intra-arterial bolus injection was superior to systemic chemotherapy in survival in Stage II. In Stage III, chemotherapy improved survival as compared with no specific treatment. The major causes of death were hepatic failure and gastrointestinal bleeding, probably due to the coexistent advanced cirrhosis. These results in survival are much improved over the past reports, and the differences are probably a result of earlier diagnosis and frequent hepatic resections.
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207
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Okuda K, Ohtsuki T, Obata H, Tomimatsu M, Okazaki N, Hasegawa H, Nakajima Y, Ohnishi K. Natural history of hepatocellular carcinoma and prognosis in relation to treatment. Study of 850 patients. Cancer 1985; 56:918-28. [PMID: 2990661 DOI: 10.1002/1097-0142(19850815)56:4<918::aid-cncr2820560437>3.0.co;2-e] [Citation(s) in RCA: 1305] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A total of 850 patients with hepatocellular carcinoma seen during the last 8 years were analyzed retrospectively for survival in relation to treatment and disease stage. A new staging scheme based on tumor size, ascites, jaundice and serum albumin was used. Clearly, the prognosis depended on disease stage. The median survival of 229 patients who received no specific treatment was 1.6 months, 0.7 month for Stage III patients, 2.0 months for Stage II, and 8.3 months for Stage I. The median survival of Stage I patients who had hepatic resection (n = 115) was 25.6 months and Stage II patients with resection (n = 42) was 12.2 months. In patients who had a small cancer (less than or equal to 25% of liver area in size) the median survival was 29.0 months. Survival of the surgically treated patients, which represented a highly selected group, was better than that of medically treated patients of a comparable stage. Median survival of Stage I medically treated patients (n = 124) was 9.4 months, for Stage II (n = 290) 3.5 months, and for Stage III (n = 50) 1.6 months. Medical treatment prolonged survival in Stage II and III patients, but not in Stage I. Transcatheter arterial embolization gave a better survival compared with chemotherapy, whether intra-arterial bolus administration of mitomycin C, systemic mitomycin C, or oral/rectal tegafur, in Stage II. Among various chemotherapeutic modalities, intra-arterial bolus injection was superior to systemic chemotherapy in survival in Stage II. In Stage III, chemotherapy improved survival as compared with no specific treatment. The major causes of death were hepatic failure and gastrointestinal bleeding, probably due to the coexistent advanced cirrhosis. These results in survival are much improved over the past reports, and the differences are probably a result of earlier diagnosis and frequent hepatic resections.
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208
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Miyamoto A, Takamura I, Kohya T, Obata H, Kanamori K, Kudo T, Kobayashi T, Sakamoto S, Yasuda H. [Right ventricular dysplasia: clinical features compared with dilated cardiomyopathy]. [HOKKAIDO IGAKU ZASSHI] THE HOKKAIDO JOURNAL OF MEDICAL SCIENCE 1985; 60:415-23. [PMID: 4018715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Five patients with right ventricular dysplasia (RVD) and 28 patients with predominantly left sided dilated cardiomyopathy (DCM) were studied. RVD was characterised by syncope, recurrent sustained ventricular tachycardia, which typically had a left bundle branch block pattern on the surface electrocardiogram, right heart failure, and faint or absence of the right ventricular free wall on the myocardial scintigraphy. Two-dimensional echocardiographic, radionuclide angiographic, and contrast ventriculographic studies were typical of the right ventricular abnormalities in both Uhl's anomaly and arrhythmogenic right ventricular dysplasia. Two of them were died suddenly. Pathologic examinations showed "parchment-like" thinning of portions of the right ventricular free wall and its replacement by adipose tissue, although such degenerations were not found in the septum and the left ventricle. By contrast, DCM was characterised by exertional dyspnea and short run ventricular tachycardia, most of which had a right bundle branch block pattern. Ten of them had left ventricular myocardial defects on the scintigraphy, of whom five died suddenly. Hemodynamic data showed that left ventricular dysfunction was predominant more than right ventricle. Thus we postulate that these two syndromes are manifestations of a congenital, pathophysiologic process - the "involved right or left ventricle" syndrome.
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209
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Yasuda H, Obata H. [Long-term vasodilator therapy for chronic congestive heart failure: is it effective?]. KOKYU TO JUNKAN. RESPIRATION & CIRCULATION 1985; 33:241-5. [PMID: 3892610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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210
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Obata H, Hashimoto E. [Diagnosis and treatment of fulminant hepatitis]. [KANGO GIJUTSU] : [NURSING TECHNIQUE] 1984; 30:1571-6. [PMID: 6566775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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211
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Chiou SS, Obata H, Takasaki T, Fukushima Y, Motoike Y, Okuda H, Tanaka S, Kurihara T, Tomimatsu M, Kobayashi S. Hepatitis viruses in southern Taiwan--mass survey of 2985 inhabitants. GASTROENTEROLOGIA JAPONICA 1984; 19:344-50. [PMID: 6092191 DOI: 10.1007/bf02779124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A survey of 2985 apparently healthy Taiwanese in southern Taiwan revealed a high prevalence (18.2%) of hepatitis B surface antigen (HBsAg). It was significantly higher in males (22.3%) than in females (13.6%), but no correlation with family origin, socioeconomic status or residence was established. About one-third of the breeding female HBsAg carriers were HBeAg-positive, and these may be an important source in the spread of HBV. Subtyping of HBsAg in 63 subjects showed adw to be dominant in this area, and 8 subjects with suspicious results had overlapping heterotypic HBV's (7 adwr and 1 adyw) in addition to 2 subjects in which coexistence of HBsAg and anti-HBs was recognized. The association between HBsAg positivity and serum transaminase elevation was significant, especially in the older groups who had a higher abnormal rate. Hepatitis A virus infection was serious too, with nearly 100% of people above 20 years of age being anti-HA antibody positive.
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212
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Okuda H, Obata H, Nakanishi T, Hisamitsu T, Matsubara K, Watanabe H. Quantification of individual serum bile acids in patients with liver diseases using high-performance liquid chromatography. HEPATO-GASTROENTEROLOGY 1984; 31:168-71. [PMID: 6479837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Using high-performance liquid chromatography combined with a column of immobilized 3 alpha-hydroxysteroid dehydrogenase, 15 bile acids, i.e., cholate, chenodeoxycholate, deoxycholate, lithocholate, ursodeoxycholate, and their five taurine conjugates and five glycine conjugates, were clearly separated and quantified in 38 patients with various hepatobiliary diseases and 9 normal controls. The serum levels of bile acids, both primary and total, were elevated in patients with liver disease, but did not differentiate between parenchymal disease and cholestasis. The ratio of cholate/chenodeoxycholate was significantly increased in cholestasis as compared with parenchymal liver injury. In primary biliary cirrhosis, the ratio of total glycine/taurine conjugates was decreased, with a marked increase of taurochenodeoxycholate. The bile acid pattern was distinctly different between extrahepatic cholestasis and primary biliary cirrhosis, which mainly reflects intrahepatic cholestasis. In acute hepatitis, there was a quick normalization of major taurine and glycine conjugates in the convalescent stage. Most of the major taurine and glycine conjugated bile salts were significantly elevated in cirrhosis, and the elevation of taurochenodeoxycholate was particularly marked in the decompensated state. Furthermore, the quantitative relationship between taurocholate and taurochenodeoxycholate in cirrhosis was reversed from that in acute hepatitis. These changes in absolute and relative concentrations of bile acids in various liver diseases perhaps reflect differing pathology and metabolism, and may prove diagnostic. Measurement of individual bile salts is easily and quickly done with this method, and may lend itself clinical application.
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213
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Matake Y, Yaguchi T, Iizuka B, Yashiro K, Tanabe M, Hasegawa K, Nagasako K, Obata H. [A case report of simple ulcer cured by predonine therapy]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1984; 81:1062-5. [PMID: 6748315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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214
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Okuda H, Obata H, Motoike Y, Hisamitsu T. Clinicopathological features of hepatocellular carcinoma--comparison of hepatitis B seropositive and seronegative patients. HEPATO-GASTROENTEROLOGY 1984; 31:64-8. [PMID: 6202615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Clinicopathological features were studied in 113 non-alcoholic patients with histology-proven hepatocellular carcinoma, of whom 35 were positive for hepatis B virus surface antigen (HBsAg), 23 were negative for all seromarkers for hepatitis B virus, and 55 were negative for HBsAg, but positive for anti-HBs and/or anti-core antibody (anti-HBc) with low titers. It was found that the age of the patient at the time of diagnosis was significantly lower in HBsAg cases than in the other two groups. Serum alpha-fetoprotein levels were often normal or below 100 ng/ml in the seronegative cases, and its measurement less frequently served as a diagnostic clue. Otherwise, clinically there was no difference between the three groups except for more frequent liver disease within the second degree of kinship in the HBsAg patients. Histopathological study of the livers showed that there were more expanding type hepatocellular carcinomas in the seronegative cases as compared with the HBsAg positive cases. There was no autoimmune chronic liver disease in these patients. These observations and data seem to indicate that there are certain differences between HBsAg positive and seronegative hepatocellular carcinomas. Since most patients had progressive liver disease, it is likely that many of these seronegative cases had chronic non-A, non-B viral disease, which is very common in Japan. It may be inferred further that non-A, non-B hepatitis virus is less carcinogenic as compared with hepatitis B virus.
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215
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Abstract
Prognosis of 600 consecutive patients with hepatocellular carcinoma was analyzed in relation to treatment. They were divided into three stages based on four parameters of advanced disease: ascites, tumor greater than 50% of the two-dimensional size of the liver, serum albumin below 3 gm per dl, and serum bilirubin above 3 mg per dl. Stage I had none of these signs; Stage II one or two signs, and Stage III three or all signs. Of 600 patients, 98 had resection, 333 had nonsurgical treatment (158 treated by intraarterial chemotherapy, 94 systemic chemotherapy, 77 transcatheter embolization, and 4 others) and 169 no treatment. The median survival of untreated patients was only 1.6 months from diagnosis, and no untreated Stage III patient lived more than 3 months; there was a median survival of 0.7 month. Surgically treated patients lived significantly longer than nonsurgical patients of comparable stages; median survival was 19.6 months in the former and 2.8 months in the latter. Whereas Stage I patients did fairly well without treatment, chemotherapy significantly prolonged survival of patients of Stages II and III. These results suggest that early diagnosis and hepatic resection improve prognosis in patients with hepatocellular carcinoma in the areas where this cancer frequently emerges unicentrically. In view of the generally poor prognosis, liver transplantation is recommended when resection is not possible or indicated, and before extrahepatic metastasis occurs.
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216
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Obata H, Komatsu T. [Nursing of patients with liver cirrhosis. Gastrointestinal hemorrhage and ascites]. [KANGO GIJUTSU] : [NURSING TECHNIQUE] 1982; 28:2107-11. [PMID: 6984720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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217
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Higuchi K, Obata H, Tokuyama T. A cyclohexanecarboxylic acid utilizing yeast: isolation, identification, and nutritional characteristics. Can J Microbiol 1982; 28:942-4. [PMID: 7139408 DOI: 10.1139/m82-141] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A yeast capable of utilizing cyclohexanecarboxylic acid as sole carbon and energy source, strain KUY-6A, was isolated from soil by enrichment cultures. Taxonomical studies indicated that strain KUY-6A was Trichosporon cutaneum. Strain KUY-6A grew on a number of carboxylic acids. Among the cyclic compounds tested, cyclohexanecarboxylic acid was the best substrate. Cyclopentanecarboxylic acid, cycloheptanecarboxylic acid, cyclopentanone, cyclohexanone, and cyclopentanol also supported growth. In addition, the organism used the monocarboxylic acids, butyric, valeric, and caproic; the dicarboxylic acids succinic, glutaric, adipic, pimelic, and suberic; and the aromatic acids, benzoic and o-, m-, and p-hydroxybenzoic. The yeast did not require any vitamins for growth, although thiamine gave slight stimulation. The cell dry weight yield was 0.75 g from 1 g cyclohexanecarboxylic acid used.
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218
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Obata H, Koga A, Nishiura S, Yoshida M, Nakayama F. [Diagnosis and treatment of pancreatic cyst -review of 24 cases-]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1982; 79:1164-72. [PMID: 7131867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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219
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Okuda K, Nakashima T, Sakamoto K, Ikari T, Hidaka H, Kubo Y, Sakuma K, Motoike Y, Okuda H, Obata H. Hepatocellular carcinoma arising in noncirrhotic and highly cirrhotic livers: a comparative study of histopathology and frequency of hepatitis B markers. Cancer 1982; 49:450-5. [PMID: 6277447 DOI: 10.1002/1097-0142(19820201)49:3<450::aid-cncr2820490310>3.0.co;2-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Hepatocellular carcinoma (HCC) associated with cirrhosis and HCC developing in a noncirrhotic liver may have differing pathogeneses. To study this possibility, 425 autopsied cases of HCC were investigated. Of these, 45 livers were not cirrhotic, 50 were highly cirrhotic (liver weight less than 99 g), and the remaining 331 were cirrhotic but not so highly. The average age was significantly older in the highly cirrhotic group, suggesting a longer premalignant period of chronic liver disease. The liver weight in the noncirrhotic group was about 3.5 times that in the highly cirrhotic group. Hepatitis B surface antigen was positive in serum in only 9.3% and in liver tissue in 10% in the noncirrhotic cases, the positivity rate being much lower compared with other groups (P less than 0.005--0.01), yet antibody to HB core was positive in 90%. The antibody titers were low, however, indicating that these noncirrhotic patients had in the past had HB virus (HBV) infection with no residual chronic B hepatitis. Analysis of the grades of anaplasia of cancer tissue demonstrated an inverse correlation between the degree of fibrosis and grade of anaplasia, i.e., the more advanced the fibrosis, the less anaplastic the cancer. These data suggest that HCC arising in highly cirrhotic liver and in noncirrhotic livers have different pathogenetic backgrounds, and that HBV infection, even though transient, has a certain role in hepatocarcinogenesis. The generally held conjecture that HCC in a noncirrhotic liver is caused by nonviral carcinogens and HCC arising on the ground of cirrhosis is due to HBV seems untenable in such a simple concept.
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220
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Obata H, Hayashi N, Motoike Y, Hisamitsu T, Okuda H, Kobayashi S, Nishioka K. A prospective study on the development of hepatocellular carcinoma from liver cirrhosis with persistent hepatitis B virus infection. Int J Cancer 1980; 25:741-7. [PMID: 14768703 DOI: 10.1002/ijc.2910250609] [Citation(s) in RCA: 112] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We made a prospective study on the development of hepatocellular carcinoma (HCC) in patients with liver cirrhosis with hepatitis B virus infection from April, 1973 to December, 1977. Seven out of 30 patients (23%) with hepatitis B surface antigen (HBsAg)-positive cirrhosis developed HCC. On the other hand, only 5.9% of the patients with HBsAg-negative liver cirrhosis developed HCC. These patients were classified into three groups according to their anti-HB core (anti-HBc) titers. When the anti-HBc titer, expressed as a dilution of serum, was 2(10) or more (Group I), 20-24% of the liver cirrhosis patients developed HCC either with or without a detectable amount of HBs Ag present in the sera. When the anti-HBc titer was 2(9) or less (Group II), only 0-5.7% developed HCC. There was no significant difference between this and the anti-HBc and HBsAg-negative group (Group III), which was 4.4%. In five individual cases from group I, HBsAg was detected in serum, and in biopsies of liver cells, before HCC could be detected by angiography and/or rising levels of alphafetoprotein (AFP). In all of these cases, the anti-HBc titer was higher than 2(10) throughout the observation period, even before the development of HCC. These findings indicate that active virus proliferation in chronic hepatitis B virus infection precedes the development of HCC as indicated by a higher anti-HBc titer. Therefore we have prepared these studies to show the pathogenic role of hepatitis B virus in the development of hepatocellular carcinoma.
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221
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Obata H, Hisamitsu T, Takeda K. [Imported hepatitis: problems with imported infectious diseases]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1980; 38:340-7. [PMID: 7392224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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222
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Kitazawa S, Johno I, Obata H, Maeda A, Mizugaki I. [A study on the weight variation test of tablets (author's transl)]. YAKUGAKU ZASSHI 1979; 99:1168-75. [PMID: 544757 DOI: 10.1248/yakushi1947.99.12_1168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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223
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Obata H, Nishioka K. Prevalence of hepatitis B virus and primary hepatocellular carcinoma in Asia. THE SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH 1979; 10:621-6. [PMID: 94184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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224
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Musashi M, Totsuka K, Wakata A, Mineta M, Obata H, Ono S, Miyazaki T, Kajita A, Hirayama A, Segi K. [An autopsied case of nodular sclerosing Hodgkin's disease with terminal leukemic change (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1979; 20:1482-91. [PMID: 537168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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225
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Obata H. Differences in normal structure and reaction to adjuvant between the costal and the visceral pleura. ARCHIVUM HISTOLOGICUM JAPONICUM = NIHON SOSHIKIGAKU KIROKU 1978; 41:65-86. [PMID: 736754 DOI: 10.1679/aohc1950.41.65] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Visceral and costal pleurae of the rabbit were studied by light and electron microscopy in the normal state, after India ink injection into the pleural cavity and in pleuritis induced by intrapleurally injected adjuvant. In normal rabbits, the mesothelial cells in the visceral pleura had more numerous microvilli and pinocytotic vesicles than in the costal pleura. The surface coat on the microvilli was much thicker in the former than in the latter. Intrapleurally injected India ink particles were phagocytosed by mesothelial cells and macrophages. The phagocytotic activity was more prominent on the costal side than on the visceral side. In rabbits with adjuvant induced pleuritis, the visceral pleura, but not the costal pleura, showed mushroom-like projections on the pleural surface which were composed of a fibrin mass mixed with phagocytotic macrophages and covered by proliferative mesothelial cells. These hitherto poorly known structures, which were formed, though less conspicuously, also after India ink administration, seemed to play an important role in the initial protection of the lung against foreign body invasions from the pleural cavity. With the progress of pleuritis, the mushroom-like projections changed into patchy granulation tissues which were well localized and did not exceed the elastic layer. In the costal pleura, apparently due to a poorer protective mechanism than in the visceral pleura, granulation tissue was formed much more extensively and diffusely. No signs of transformation of mesothelial cells into fibroblasts were recognized. Fat-containing cells closely resembling the Ito cells in the liver occurred in the submesothelial and subpleural layers of the visceral pleura.
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226
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Okuda K, Musha H, Nakajima Y, Kubo Y, Shimokawa Y, Nagasaki Y, Sawa Y, Jinnouchi S, Kaneko T, Obata H, Hisamitsu T, Motoike Y, Okazaki N, Kojiro M, Sakamoto K, Nakashima T. Clinicopathologic features of encapsulated hepatocellular carcinoma: a study of 26 cases. Cancer 1977. [PMID: 198091 DOI: 10.1002/1097-0142(197709)40:3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The clinicopathologic features of 26 cases of hepatocellular carcinoma (HCC) surrounded by a grossly distinct capsule-like fibrous tissue were studied. The frequency of this type was 10.3% among autopsy cases of HCC. The mean age of the patients was 64.1 years, which was significantly older compared with that of 143 cases of nonencapsulated HCC. Hepatitis-B surface antigen in serum was positive in 18.7% of the cases studied, the positivity rate being lower than that of HCC in general. Histologically, the tumor was relatively well differentiated and the capsule was the product of slow expanding growth. Intravenous tumor invasion was less frequent compared with other types of HCC. Clinically, celiac angiography proves to be a most useful diagnostic method; a thick capsule may be demonstrated as a thin radiolucent rim around the mass. The clinical course from the early stage is protracted and, if detected early, this type of HCC may be removed surgically.
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227
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Takano K, Hizuka N, Shizume K, Hayashi N, Motoike Y, Obata H. Serum somatomedin peptides measured by somatomedin A radioreceptor assay in chronic liver disease. J Clin Endocrinol Metab 1977; 45:828-32. [PMID: 914986 DOI: 10.1210/jcem-45-4-828] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The levels of serum somatomedin peptides were determined with a somatomedin A radioreceptor assay utilizing human placental membranes. Low levels were found in 25 patients with liver cirrhosis and 28 patients with chronic hepatitis with the mean of 0.47 +/- 0.05 and 0.60 +/- 0.04 U/ml, respectively. There was a positive correlation between somatomedin A on one hand and serum albumin, cholinesterase, total cholesterol and thrombotest on the other. There was a negative correlation between somatomedin A and the indocyanine green retention test. These findings confirm earlier results obtained with bioassay.
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228
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Okuda K, Musha H, Nakajima Y, Kubo Y, Shimokawa Y, Nagasaki Y, Sawa Y, Jinnouchi S, Kaneko T, Obata H, Hisamitsu T, Motoike Y, Okazaki N, Kojiro M, Sakamoto K, Nakashima T. Clinicopathologic features of encapsulated hepatocellular carcinoma: a study of 26 cases. Cancer 1977; 40:1240-5. [PMID: 198091 DOI: 10.1002/1097-0142(197709)40:3<1240::aid-cncr2820400339>3.0.co;2-y] [Citation(s) in RCA: 130] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The clinicopathologic features of 26 cases of hepatocellular carcinoma (HCC) surrounded by a grossly distinct capsule-like fibrous tissue were studied. The frequency of this type was 10.3% among autopsy cases of HCC. The mean age of the patients was 64.1 years, which was significantly older compared with that of 143 cases of nonencapsulated HCC. Hepatitis-B surface antigen in serum was positive in 18.7% of the cases studied, the positivity rate being lower than that of HCC in general. Histologically, the tumor was relatively well differentiated and the capsule was the product of slow expanding growth. Intravenous tumor invasion was less frequent compared with other types of HCC. Clinically, celiac angiography proves to be a most useful diagnostic method; a thick capsule may be demonstrated as a thin radiolucent rim around the mass. The clinical course from the early stage is protracted and, if detected early, this type of HCC may be removed surgically.
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229
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Okuda K, Nakashima T, Obata H, Kubo Y. Clinicopathological studies of minute hepatocellular carcinoma. Analysis of 20 cases, including 4 with hepatic resection. Gastroenterology 1977; 73:109-15. [PMID: 67981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Sixteen necropsies and 4 cases of hepatic resection in which the liver had a solitary hepatocellular carcinoma smaller than 4.5 cm, or a few tumor nodules smaller than 3.5 cm, have been analyzed. Clinically, these patients presented with signs and symptoms compatible with cirrhosis and, of the 16 autopsy cases only 2 had been diagnosed correctly. In all but 4 cases, the noncancerous parenchyma showed advanced cirrhosis of the mixed type, with irregularly sized multilobular nodules and thin strands of stroma, different from typical alcoholic cirrhosis. The primary lesion was grossly encapsulated in the majority, suggesting a slow, expanding growth. Histologically, most primaries were relatively well differentiated. Serum alpha-fetoprotein was generally low, and it served as the major diagnostic clue in only 5 cases. In patients with mildly abnormal alpha-fetoprotein levels, continuous monitoring seems important in order to detect a steady rise, the first warning for tumor growth.
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230
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Kitazawa S, Johno I, Minouchi T, Obata H, Okada J. [Effect of volume of immersion fluid on disintegration time tablets (author's transl)]. YAKUGAKU ZASSHI 1977; 97:654-60. [PMID: 925856 DOI: 10.1248/yakushi1947.97.6_654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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231
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Okuda K, Obata H, Jinnouchi S, Kubo Y, Nagasaki Y. Angiographic assessment of gross anatomy of hepatocellular cardinoma: comparison of celiac angiograms and liver pathology in 100 cases. Radiology 1977; 123:21-9. [PMID: 191872 DOI: 10.1148/123.1.21] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Of 190 sets selective celiac and/or hepatic angiograms obtained in patients with hepatocellular carcinoma (HCC), comparison with gross anatomy of the liver was subsequently made by autopsy in 77 and by surgery in 23. It was found that the gross anatomy of HCC can be assessed with certain accuracy by careful interpretation of the angiograms, because tumor vasculature and vascular alterations in the noncancerous parenchyma are closely related to the mode of tumor growth, size of tumor nodules and their distribution. Even a fibrous capsule of the tumor may be discerned as a radiolucent zone around the tumor contour. Diagnosis of the gross anatomical type of HCC is important to the selection of therapeutic measure and assessment of prognosis.
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232
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Obata H. [Fine structure of the subcutaneous nodule of chronic rheumatoid arthritis: biopsy study]. RYUMACHI. [RHEUMATISM] 1976; 16:139-50. [PMID: 959904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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233
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Okuda K, Kubo Y, Obata H. Serum alpha-fetoprotein in the relatively early stages of hepatocellular carcinoma and its relationship to gross anatomical types. Ann N Y Acad Sci 1975; 259:248-52. [PMID: 54027 DOI: 10.1111/j.1749-6632.1975.tb25420.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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234
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Okuda K, Kotoda K, Obata H, Hayashi N, Hisamitsu T. Clinical observations during a relatively early stage of hepatocellular carcinoma, with special reference to serum alpha-fetoprotein levels. Gastroenterology 1975; 69:226-34. [PMID: 50251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Five cases of hepatocellular carcinoma in whom diagnosis was made when the tumor was relatively small, are described. In 2 cases, serum alpha-fetoprotein (AFP) strted to rise sharply, which enabled early detection and surgical removal of the tumor. Serum AFP was below 100 ng per ml, but above the upper normal limit by radioimmunoassay, and was unfluctuating for a considerable period of time before it began to rise in 2 cases. It was negative throughout in 1 case, who lived more than 4 years after the tumor had reached a detectable size. In 4 of 5 cases, the tumor seemed to have evolved during a stage of chronic hepatitis or its transition to cirrhosis. In 1 case with chronic schistosomiasis and advanced mixed macro- and micronodular cirrhosis, a 1.5-cm tumor was detected by celiac angiography. These observations on time relationship of oncogenesis may be generalized to modify the cirrhotic liver. Necessity is emphasized for the early detection of this type of carcinoma to monitor serum AFP in chronic hepatitis patients, particularly in those with unfluctuating, mildly abnormal levels of AFP.
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235
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Nozawa Y, Morikawa S, Tsubata K, Hirano T, Obata H. [Transbronchial lung biopsy. 2. Its application to diffuse lung diseases]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1974; 12:191-8. [PMID: 4547108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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236
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237
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Nozawa Y, Obata H, Hirano T. [Transbronchial lung biopsy. 1. An experimental observation of biopsy specimens and biopsy wounds]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1974; 12:129-36. [PMID: 4471941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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238
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Yoshida M, Kondo A, Obata H, Kumano H, Miura T. [Symposium: Alpha-1 antitrypsin deficiency in Japan]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1974; 12:10-3. [PMID: 4545443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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239
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Nao Y, Obata H, Machii A. [Clinical problems of aggravation of hepatitis]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1973; 31:2922-7. [PMID: 4798110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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240
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Ogima I, Kondo Y, Nozawa Y, Obata H, Yamazaki M. [Pulmonary complication of bronchography and lymphography]. KOKYU TO JUNKAN. RESPIRATION & CIRCULATION 1973; 21:619-23. [PMID: 4737822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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241
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Nao Y, Obata H, Nagasako H, Yazawa C. [Ulcerative colitis]. NAIKA. INTERNAL MEDICINE 1971; 27:1032-9. [PMID: 4326408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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242
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Nao Y, Obata H. [Ulcerative colitis]. SHUJUTSU. OPERATION 1970; 24:1119-26. [PMID: 4918369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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243
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Nao Y, Obata H. [Ulcerative colitis]. NAIKA. INTERNAL MEDICINE 1969; 24:1042-8. [PMID: 5360070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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244
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Nao Y, Murakami Y, Maki H, Obata H, Takamatsu M. [An autopsy case of carcinoid tumor]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 1966; 55:892-8. [PMID: 6009883 DOI: 10.2169/naika.55.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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245
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Akasu F, Obata H, Osanai K, Kominami Y, Takeuchi S. [Round table conference. Breech presentation, analysis of the problem]. NIHON SANKA FUJINKA GAKKAI ZASSHI 1966; 18:1227-1236. [PMID: 6009572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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246
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Nakamura K, Tsugane R, Ito H, Obata H, Narita H. Traumatic arterio-venous fistula of the middle meningeal vessels. J Neurosurg 1966; 25:424-9. [PMID: 5925713 DOI: 10.3171/jns.1966.25.4.0424] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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247
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Obata H, Okada K, Miyagi M, Sato M. [Immunological pregnancy test with hemagglutination inhibition reactions]. NIHON SANKA FUJINKA GAKKAI ZASSHI 1965; 17:489-96. [PMID: 5895577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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