226
|
Nagata A, Yoshizawa S, Homma T, Oda M. [Comparative studies of experimental pancreatic injuries with human chronic pancreatitis by electron microscopy (author's transl)]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1977; 74:1650-9. [PMID: 609121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
227
|
Furuta S, Kiyosawa K, Nagata A, Koike Y, Sahara T, Furukawa K, Iijima Y, Yamamura S, Komatsu H, Kawahara K, Miura M, Gibo Y, Sodeyama K, Oda M, Tsuda F, Akahane Y, Mayumi M. Clinical significance of e-antigen/anti-e, with special reference to HBc-antigen in the liver. GASTROENTEROLOGIA JAPONICA 1977; 12:460-5. [PMID: 608568 DOI: 10.1007/bf02781338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
e-antigen and anti-e were assayed in sera of asymptomatic HBs-Ag carriers and of patients with liver diseases. Thirteen out of 34 (38.2%) asymptomatic carriers were positive for e-antigen, which was in sharp contrast to the reports from USA and Europe. e-antigen was detected to a greater extent in patients with chronic active hepatitis, reversely anti-e in patients with chronic persistent hepatitis. However, e-antigen was found rarely in patients with cirrhosis and never in 23 cases with hepatoma positive for HBs-Ag. HBc-Ag in the liver was detected in 4 out of 8 e-antigen positive asymptomatic carriers and in 4 out of 5 patients with chronic liver diseases with e-antigen respectively, and moreover in 3 out of 14 anti-e positive cases, so that the presence of anti-e did not necessarily mean the negativity of HBc-Ag in the liver. Anti-HBc titer, however, was lower in anti-e positive sera than in e-antigen positive ones. This may implicate the decreased replication of HBV in cases with anti-e. These results emphasize that the investigation of e-antigen/anti-e is mandatory for the evaluation of the prognosis of asymptomatic carriers and of patients with chronic hepatitis.
Collapse
|
228
|
Furuta S, Nagata A, Kiyosawa K, Koike Y, Yamamura S. [Hepatitis other than types A or B]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1977; 35:2724-8. [PMID: 926369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
229
|
Kiyosawa K, Furuta S, Nagata A, Akahane Y, Koike Y. [Studies on the clinical significance of the antibody to hepatitis B core antigen (author's transl)]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1977; 73:935-40. [PMID: 926409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
230
|
Ito M, Nagase C, Mitsuoka A, Nagata A, Harada T. [Studies on the structure and function of the bronchial gland. (1) Significance of the bronchial gland as a defense mechanism for infections]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1977; 15:186-91. [PMID: 560588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
231
|
Furuta S, Nagata A, Kiyosawa K, Akahane Y, Koike Y, Sahara T, Oda M, Mayumi M, Tsuda F. Anti-HBc titer in relation to the etiological role of hepatitis B virus in primary hepatocellular carcinoma. ACTA HEPATO-GASTROENTEROLOGICA 1977; 24:3-6. [PMID: 192028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The antibody to hepatitis B core antigen (anti-HBc) is belived to be a marker for natural infection with hepatitis B virus (HBV). In order to study the etiological role of HBV in relation to primary hepatocellular carcinoma (PHC), the anti-HBc in sera of 31 PHC patients was surveyed by the immune adherence hemagglutination method which was about 10 times more sensitive than the complement fixation method. Twenty two out of 31 PHC cases were positive for anti-HBc (71.0%). The is a higher rate of incidence than that of HBs-Ag (51.6%). However, high anti-HBc titer above 2(10) which might reflect current infection with HBV was observed in 15 of these 22 cases. The remaining 7 cases had a titer lower than 2(8); 5 of these patients had neither HBs-Ag nor anti-HBs in their sera. As control, 37 anti-HBs positive blood donors with no definite liver disease were surveyed for anti-HBc titer. Thirty-four of them were positive, but in the majority of cases, the serum titer was less than 2(9), which might only reflect previous infection with HBV. These findings indicate that not only the prevalence of anti-HBc, but also the determination of its real titer is quite important for studying the relationship of HBV to PHC.
Collapse
|
232
|
Kiyosawa K, Furuta S, Nagata A, Akahane Y, Koike Y. [Clinical significance of antibody to hepatitis B core antigen (anti-HBc)]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1976; 73:935-40. [PMID: 1035641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
233
|
Hirohashi A, Nagata A, Miyawaki H, Nakatani H, Toki K. Metabolism of linoleamides. I. Absorption, excretion and metabolism of N-(alpha-methylbenzyl)linoleamide in rat and man. Xenobiotica 1976; 6:329-37. [PMID: 969560 DOI: 10.3109/00498257609151644] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
1. In urine of rats dosed with N-(alpha-methylbenzyl)linoleamide (MBLA), three dicarboxylic acid monoamides, N-(alpha-methylbenzyl)succinic acid monoamide, N-(alpha-methylbenzyl)glutaric acid monoamide and N-(alpha-methylbenzyl)adipic acid monoamide, were identified. Conjugated alpha-methylbenzylamine, hippuric acid and conjugates of the dicarboxylic acid monoamides were also found in the urine. N-(alpha-Methylbenzyl)succinic acid monoamide was the main metabolite in rats. 2. Biliary excretion of radioactivity was studied in rats, cannulated for collection of bile and duodenal infusion, after oral administration of N-(alpha-methylbenzyl)[1-14C]linoleamide. With constant duodenal infusion of bile, about 7% of the dose was excreted in the bile, while excretion of radioactivity was negligible without bile infusion. 3. The g.l.c. analysis of human urine after oral administration of MBLA revealed that two dicarboxylic acid monoamides were present and N-(alpha-methylbenzyl)succinic acid monoamide was the main metabolite. 4. MBLA was excreted unchanged in the faeces of men who received MBLA to the extent of about 53% dose in 3 days. 5. MBLA was not detected (less than 1 mug/ml) in the serum of a volunteer who had been taking an oral daily dose of 1500 mg of MBLA for 3 months.
Collapse
|
234
|
Nagata A. Metabolism of linoleamides. II. Absorption, distribution, excretion and metabolism of N-[alpha-phenyl-beta-(p-tolyl)ethyl]linoleamide. Xenobiotica 1976; 6:339-44. [PMID: 969561 DOI: 10.3109/00498257609151645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
1. Absorption, distribution, excretion and metabolism of (-)N-[alpha-phenyl-beta-(p-tolyl)ethyl][14C]linoleamide (14C-PTLA) were studied in rats and dogs. Faecal excretion of PTLA was studied in dogs and men by g.l.c. 2. 14C-PTLA (10 mg/kg) given orally to rats resulted in urinary and faecal excretion of radioactivity of 2 and 93%, respectively, by male rats and 8 and 87% by female rats in 48 h. Faecal excretion of PTLA in men was similar to that in rats. 3. Distribution of radioactivity in rats and dogs after oral administration of 14C-PTLA showed that a major part of the dose was not absorbed. 4. N-[alpha-phenyl-beta-(p-tolyl)ethyl]glutaric acid monoamide were detected in the urine of rats dosed orally with 14C-PTLA.
Collapse
|
235
|
Nagata A, Nakatani H, Toki K. Inhibition of cholesterol absorption by (-)N-[alpha-phenyl-beta-(p-tolyl)ethyl] linoleamide in rats. Lipids 1976; 11:163-6. [PMID: 1263757 DOI: 10.1007/bf02532852] [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: 12/26/2022]
Abstract
The effect of (-)N-[alpha-phenyl-beta-(p-tolyl)ethyl] linoleamide (PTLA) on intestinal absorption of cholesterol was studied in rats. Oral administration of 15 mg PTLA to rats resulted in a significant (P less than 0.05) decrease in the radioactivity in serum and liver 4 hr after administration of labeled cholesterol. The effect of PTLA was greater on the absorption of cholesteryl oleate as compared with free cholesterol. The rate of hydrolysis of cholesteryl oleate in mucosal homogenates of rat intestine was decreased with PTLA, suggesting that the inhibition of cholesterol absorption by PTLA is related to its effect on cholesteryl ester hydrolysis in the intestine.
Collapse
|
236
|
Nagata A, Aono S, Nakatani H. Effect of (-)N-[alpha-phenyl-beta-(p-tolyl)ethyl] linoleamide on lipid levels in serum and liver in cholesterol-fed rats. Lipids 1976; 11:167-71. [PMID: 1263758 DOI: 10.1007/bf02532853] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The effect of (-)N-[alpha-phenyl-beta-(p-tolyl)ethyl] linoleamide (PTLA) on lipid levels in serum and liver was compared with that of sitosterols in rats maintained on a diet supplemented with 1% of cholesterol, 0.5% of ox bile extracts, and 10% of hydrogenated coconut oil for 8 weeks. When PTLA was added to the diet at a level of 0.1%, the mean liver cholesterol level of male rats was reduced to 41% of the control and that of female rats was reduced to 19% of the control. In female rats, which showed higher cholesterol levels in serum and liver than male rats after cholesterol feeding, PTLA lowered the liver cholesterol level even at 0.0008% in the diet. Serum cholesterol was lowered by PTLA but not so markedly as liver cholesterol. The inhibition of cholesterol deposition in the liver suggests that the interference with cholesterol absorption is one of the main actions of PTLA. Sitosterols showed a similar pattern of lipid-lowering action, but the potency was far less than that of PTLA.
Collapse
|
237
|
Furuta S, Nagata A, Kiyosawa K, Takahashi T, Akahane Y. HBs-Ag, HBc-Ag and virus-like particles in liver tissue. GASTROENTEROLOGIA JAPONICA 1975; 10:208-14. [PMID: 1234098 DOI: 10.1007/bf02776654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hepatitis B surface antigen (HBs-Ag) and hepatitis B core antigen (HBc-Ag) in hepatic tissue of 3 cases with various liver diseases were investigated by immunofluorescent method. Virus-like particles were demonstrated by electron microscopy in the nuclei of these 3 cases. The localization of HBs-Ag was restricted in cytoplasma or on the surface of hepatocyte, while HBc-Ag was almost in the hepatocytic nuclei. However, there was unexplainable discrepancy between the distribution of HBs-Ag and that of HBc-Ag, as more the former in number and less that latter, of hepatocytes. The size of virus-like particles in nuclei was 22-27 nm in diameter. Most of them were hollow, but some of them were wholly electron dense. Their distribution was various from case to case. Discussion was made on the correlation between the presence of Hepatitis B virus and HBs-Ag or HBc-Ag.
Collapse
|
238
|
|
239
|
Kamimura K, Nagata A. [Diabetes mellitus in young children and the control program--a case study]. [KANGO GIJUTSU] : [NURSING TECHNIQUE] 1975; 21:72-80. [PMID: 1042325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
240
|
Furuta S, Omori A, Nagata A, Tsukioka J, Takahashi T. [Asymptomatic carriers and healthy carriers of HB antigen]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1974; 32:3488-94. [PMID: 4477201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
241
|
Nagata A. [Proceedings: Kinesiologic study of muscular control of finger movement]. NIHON SEIRIGAKU ZASSHI. JOURNAL OF THE PHYSIOLOGICAL SOCIETY OF JAPAN 1974; 36:410. [PMID: 4478643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
242
|
Yamamoto M, Morishita M, Hirano Y, Nagata A, Yazaki M. [Bacteriological relapse among the previously treated advanced pulmonary tuberculosis patients whose sputum converted to negative by the rifampicin treatment, with special reference to the duration of rifampicin administration (author's transl)]. KEKKAKU : [TUBERCULOSIS] 1974; 49:195-9. [PMID: 4214961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
243
|
Utsui H, Nagata A. [Aiming at scientific practice. 7. For the student who studies nursing]. [KANGO] JAPANESE JOURNAL OF NURSING 1974; 26:43-53. [PMID: 4495512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
244
|
Yamamoto M, Mizutani A, Nakamura H, Hirose H, Nagata A. [Comparison of therapeutic effects of rifampicin 450 mg daily and 600 mg three times weekly on the previously treated pulmonary tuberculosis patients]. KEKKAKU : [TUBERCULOSIS] 1973; 48:197-202. [PMID: 4732658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
245
|
Noda T, Take T, Nagata A, Wakamiya T, Shiba T. Chemical studies on tuberactinomycin. 3. The chemical structure of viomycin (tuberactinomycin B). J Antibiot (Tokyo) 1972; 25:427-8. [PMID: 4350196 DOI: 10.7164/antibiotics.25.427] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
246
|
Izumi R, Noda T, Ando T, Take T, Nagata A. Studies on tuberactinomycin. 3. Isolation and characterization of two minor components, tuberactinomycin B and tuberactinomycin O. J Antibiot (Tokyo) 1972; 25:201-7. [PMID: 4340567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
247
|
Oda M, Furuta S, Omori A, Hanaoka S, Nagata A. [Case of primary hepatic cancer accompanied with numerous Mallory bodies]. NAIKA. INTERNAL MEDICINE 1972; 29:582-6. [PMID: 4260874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
248
|
Nagata A, Miyawaki H, Endo M, Nakatani H. Enzymatic hydrolysis of N-(alpha-methylbenzyl)linoleamide. Chem Pharm Bull (Tokyo) 1971; 19:1276-7. [PMID: 5557572 DOI: 10.1248/cpb.19.1276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
249
|
Aoki K, Nagata A, Nakamura H, Ogata K, Matauoka T. [Symposium on tuberculosis in the aged]. KEKKAKU : [TUBERCULOSIS] 1971; 46:77-80. [PMID: 5552232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
250
|
Yoshioka H, Aoki T, Goko H, Nakatsu K, Noda T, Sakakibara H, Take T, Nagata A, Abe J, Wakamiya T, Shiba T, Kaneko T. Chemical studies on tuberactinomycin. II. The structure of tuberactinomycin 0. Tetrahedron Lett 1971. [DOI: 10.1016/s0040-4039(01)96775-9] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|