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Kuwahara T, Takasima F, Miyauchi S, Maruyama T. [Clinical studies on chewing movement effects of foods]. NIHON HOTETSU SHIKA GAKKAI ZASSHI 1987; 31:661-74. [PMID: 3506697 DOI: 10.2186/jjps.31.661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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202
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Yajima T, Takeuchi T, Okada T, Yoshizaki H, Kuwahara T, Koyama K, Nakamura K. Spasmolytic action of the cerebral circulation improver 6,7-dimethoxy-1- (3,4-dimethoxybenzyl)-4-[( 4-(2-methoxyphenyl)-1-piperazinyl]methyl) isoquinoline in isolated canine vessels. ARZNEIMITTEL-FORSCHUNG 1987; 37:498-502. [PMID: 2887171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Vasodilating action of a new calmodulin antagonist, 6,7-dimethoxy-1-(3,4-dimethoxybenzyl)-4-[( 4-(2- methoxyphenyl)-1-piperazinyl] methyl) isoquinoline (Ro 22-4849) was examined in various isolated canine vessels. Ro 22-4839 was found to dilate basilar and middle cerebral arteries and to non-selectively antagonize submaximal contraction of these arteries under the treatment of various constrictors (K+, Ca2+, PGF2 alpha (dinoprost), serotonin and incubated blood) with IC50 values ranging from 0.043 to 1.69 mumol/l. Vasospasmolytic action of the compound in these cerebral arteries was 9 and 20 times greater than those in coronary and femoral arteries, respectively. The arterial relaxation by Ro 22-4839 was hardly overcome by addition of extra calcium and Ro 22-4839 did not alter calcium channels in the guinea-pig papillary muscle, although the compound inhibited the tension development, confirming its calmodulin antagonistic properties. Ro 22-4839 inhibited norepinephrine (NE)-induced contraction of femoral arterial strips concentration-dependently, and prevented NE-induced lethal extravasation in mice with an ED50 value of 1.96 mg/kg p.o. In in vitro [3H]-dihydroergocryptine binding assay and ex vivo [3H]-WB-4101 (2-[(2',6'-dimethoxy)phenoxyethylamino] methylbenzodioxan) binding assay, the compound showed a potent inhibitory action on alpha 1-adrenoceptor. These findings indicate that Ro 22-4839 exerts the spasmolytic effects on cerebral vessels through calmodulin antagonistic properties combined with alpha 1-adrenoceptor blocking action.
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203
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Kuwahara T, Nagayama T. Distribution of keratin protein in normal prostate and prostatic tumors. An immunohistochemical study. ACTA PATHOLOGICA JAPONICA 1987; 37:339-42. [PMID: 2440232 DOI: 10.1111/j.1440-1827.1987.tb03070.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fifty cases (20 cases of benign hyperplasia, 30 cases of adenocarcinoma) of prostatic tissues were studied for expression of keratin. The basal cells were strongly and continuously positive in normal prostatic glands and in benign prostatic hyperplasia. The secretory cells and carcinoma cells were negative. The basal cells remained partially in intra-ductal carcinoma, revealing keratin positive cells in a spotty pattern. These findings may be useful in differential diagnosis between benign prostatic hyperplasia and carcinoma of the prostate.
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204
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Takagi T, Sakai C, Oguro M, Omura K, Shimada H, Takemiya S, Kuwahara T. [Induction chemotherapy with cisplatin and peplomycin in squamous cell carcinoma of the head and neck]. Gan To Kagaku Ryoho 1987; 14:543-6. [PMID: 2434031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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205
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Suzuki R, Matsuhashi M, Kuwahara T, Kase T. [Topical use of thrombin in prostatic surgery]. HINYOKIKA KIYO. ACTA UROLOGICA JAPONICA 1986; 32:1461-4. [PMID: 2436462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We describe the usefulness of topical application of thrombin as a hemostatic aid in prostatic surgery. We used a specially designed 3-way bag catheter, one way of which opened to the prostatic fossa. After enucleation of the prostate suprapubically, we inserted the bag catheter into the bladder before any hemostatic procedure was performed on the prostatic fossa, inflated the bag, gently pulled down the catheter against the prostatic fossa, and then injected the thrombin solution (5,000 units/5 cc. X 2) into the fossa. Fifty patients were randomized into two groups; the "thrombin" method group and the hemostatic "ligature" group, and compared. The "thombin" method group showed statistically significant superiority to the "ligature" method group in reduced operation time and operative bloodloss. On the contrary, the duration of postoperative hematuria was longer with the "thrombin" method but not significantly. Even the prolonged duration of hematuria, however, produced no clinical problems. Hypofibrinogenemia and poor conditions of drug storage lowered its efficacy. These points should be remembered when using thrombin.
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206
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Nakamura Y, Kuwabara T, Mizumori T, Kuwahara T, Nishiio K, Takashima F, Miyauchi S, Maruyama T. [Clinical studies on the effect of a single crown on chewing movements]. NIHON HOTETSU SHIKA GAKKAI ZASSHI 1986; 30:638-45. [PMID: 3463850 DOI: 10.2186/jjps.30.638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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207
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Kuwahara T, Kanatsu K, Doi T, Sekita K, Kataoka Y, Nagai H, Ohhashi H, Tamura T, Kawai C. Peculiar round structures in the renal medulla in three patients with Bartter's syndrome. NIHON JINZO GAKKAI SHI 1986; 28:319-26. [PMID: 3723865] [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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208
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Kuwahara T. [Cytodiagnosis of lung cancer. Immunohistochemical findings in lung cancer]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1986; 34 Spec No 66:163-74. [PMID: 3520051] [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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209
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Nishiyama S, Kuwahara T, Matsuda I. Decreased bone density in severely handicapped children and adults, with reference to the influence of limited mobility and anticonvulsant medication. Eur J Pediatr 1986; 144:457-63. [PMID: 3007152 DOI: 10.1007/bf00441738] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Bone density and related biochemical parameters were investigated in institutionalised children and adults with severe handicaps, who were classified according to the degree of limited mobility (group 1, bed-ridden; group 2, capable of crawling; group 3, capable of walking) and according to whether or not they were receiving anticonvulsants. As determined by microdensitometric analysis of radiograms of the second metacarpal bone, bone width (D), bone pattern area (sigma GS) and bone salt density (sigma GS/D) were decreased in the patients, the decreases being most prominent in group 1, followed by groups 2 and 3, in that order. Significant decreases of sigma GS and sigma GS/D, but not of D, were found in patients on anticonvulsant treatment in comparison to patients without therapy. Serum alkaline phosphatase (Al-p) and parathyroid hormone (iPTH) as well as urinary calcium and cyclic adenosine-3',5'-monophosphate (cAMP) excretion were significantly increased in group 1. In comparison to patients without therapy, anticonvulsant-treated children showed significantly decreased levels of serum calcium (Ca), ionised Ca (Ca2+), 25-hydroxy vitamin D3 and urinary phosphate (PO4) excretion, and elevated levels of Al-p, iPTH and calcitonin (iCT). It is suggested that limited physical activity results in a mild hyperparathyroid state, which is aggravated in patients on anticonvulsant treatment.
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210
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Saito T, Yamaya T, Iwama A, Kuwahara T. Effects of Additives on the Ignition of AP-Based Propellants at subatmospheric pressures. PROPELLANTS EXPLOSIVES PYROTECHNICS 1985. [DOI: 10.1002/prep.19850100503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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211
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Tachibana Y, Hasegawa T, Nomoto H, Kuwahara T, Tezuka H, Terashi A. A case of mycoplasmal pneumonia secondary to measles pneumonia. With some observations on 20 hospitalized patients with mycoplasmal pneumonia in 1984. NIHON IKA DAIGAKU ZASSHI 1985; 52:602-6. [PMID: 4066902 DOI: 10.1272/jnms1923.52.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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212
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Kuwahara T, White RA, Agosin M. A cytosolic FAD-containing enzyme catalyzing cytochrome c reduction in Trypanosoma cruzi. I. Purification and some properties. Arch Biochem Biophys 1985; 239:18-28. [PMID: 3923933 DOI: 10.1016/0003-9861(85)90807-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A cytosolic flavoprotein enzyme for the protozoan, Trypanosoma cruzi, has been purified essentially to homogeneity by DEAE-cellulose and 2',5'-ADP-agarose column chromatography. The native enzyme has a molecular weight of 100,000 +/- 6,000, is composed of two identical subunits of molecular weight 52,000 +/- 1,000, and contains FAD in the ratio of 1 mol of FAD per mol of enzyme subunit. The enzyme is NADPH-dependent and is capable of reducing cytochrome c, ferricyanide, 2,6-dichloroindophenol, and menadione, but not adrenalin. It does not hydroxylate either sodium salicylate or sodium p-hydroxybenzoate, but N-methylaniline and N,N-dimethylaminobenzaldehyde-supported oxidation of NADPH has been demonstrated. Plots of initial velocity against NADPH concentration give hyperbolic curves with Km values of 6.289 X 10(-5) M. The enzyme is clearly different from the microsomal NADPH-cytochrome c reductase in its intracellular distribution, molecular weight, dimeric nature, presence of only FAD, and activity against secondary and tertiary aromatic amines.
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213
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Kuwahara T, Kawai C, Matsunaga M. [Pharmacology of calcium channel blockers]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1985; 43:978-82. [PMID: 4032797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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214
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Ohashi H, Matsunaga M, Kuwahara T, Pak CH, Kawai C. Production and release of inactive renin by human vascular smooth muscle cells. CLINICAL AND EXPERIMENTAL HYPERTENSION. PART A, THEORY AND PRACTICE 1985; 7:1395-407. [PMID: 3907894 DOI: 10.3109/10641968509073599] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Human arterial smooth muscle cells were obtained from surgically excised tissues and cultured by the explant method. The cultured cells had both active and inactive forms of an angiotensin I forming enzyme. About a five-fold increase in the activity was obtained by trypsin treatment. This renin-like enzyme was also found in abundance in the culture media, mostly in an inactive form. Most of the enzyme activity, either before or after the activation, was suppressed by an antibody specific to human renin. The inactive enzyme was activated to some extent also by acidification and by cold exposure. The molecular weight of the inactive enzyme was estimated to be approximately 49,000 by gel filtration. These results suggest that human vascular smooth muscle cells can produce renin and release an inactive form of renin, and can be a potential source of plasma inactive renin under certain conditions such as the anephric state.
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215
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Ogawa K, Kurose T, Kuwahara T, Ishikawa K, Matsunaga M, Nakamura Y, Pak CH, Hara A, Kawai C. Successful treatment of the crisis of scleroderma with enalapril maleate (MK-421). TOHOKU J EXP MED 1984; 144:433-4. [PMID: 6098974 DOI: 10.1620/tjem.144.433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A 74-year-old man has been known to have scleroderma for 5 years. Two months before the hospitalization, his blood pressure was rapidly elevated, and progressive renal impairment and ulcerations of the fingers manifested. Then he was diagnosed to have a crisis of scleroderma. The treatment with a new long-acting angiotensin I converting enzyme inhibitor, enalapril maleate (MK-421), normalized the blood pressure and protected the progress of renal impairment without side effects.
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216
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Nagayama T, Miyauchi T, Kuwahara T, Nakajima Y. [Ultrastructural classification of tumors of the urinary bladder. Its correlation to clinical course and morphological features under light microscopy]. Nihon Hinyokika Gakkai Zasshi 1984; 75:1890-5. [PMID: 6535019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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217
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Abstract
NADPH-dependent reduction of cytochrome c is catalyzed both by microsomes and the cytosolic fraction isolated from Trypanosoma cruzi homogenates. About one-third of the activity is microsomal and two-thirds is cytosolic. The microsomal activity is increased by Lubrol and sodium cholate, but pretreatment with phenobarbital has negligible effect. On the other hand, detergents do not affect the cytosolic activity but it is increased by phenobarbital. From these observations, it is concluded that the NADPH-dependent reduction of cytochrome c by microsomes and the cytosol corresponds to two distinct enzymes. The cytosolic enzyme has been purified to a single SDS-PAGE band of about 53,000 da and partially characterized.
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218
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Muso E, Sekita K, Doi T, Kuwahara T, Yoshida H, Tamura T, Kawai C, Hamashima Y. Immunopathological correlation between mesangial C3d-deposition and C3d-fixing circulating immune complexes in lupus nephritis. CLINICAL IMMUNOLOGY AND IMMUNOPATHOLOGY 1984; 32:351-8. [PMID: 6380844 DOI: 10.1016/0090-1229(84)90278-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
By a direct immunofluorescent technique, glomerular C3d deposition was examined in a total of 50 renal biopsy specimens from patients with lupus nephritis. C3d deposition was then compared with disease activity, glomerular IgG and C3c deposition, and the levels of circulating immune complexes (CIC) measured by a solid-phase anti-C3d assay. There was a good correlation between disease activity and the positivity of glomerular C3d deposits (P less than 0.001), as well as C3c deposits (P less than 0.001). Even in clinically inactive patients, a relatively high percentage (59%) of C3d deposits were positive compared with C3c deposits (17%). Mesangial C3d deposition correlated with clinical disease activity more significantly (P less than 0.005) than capillary wall C3d deposition (P less than 0.025). C3d deposits were detected in all of the 30 cases with positive C3c deposits, and moreover, in 15 of the 20 (75%) cases with negative C3c deposits. Glomerular IgG deposits were almost always associated with C3d deposits, both in mesangial areas and along capillary walls, with statistical significance (P less than 0.005, P less than 0.001, respectively). The serum levels of C3d-fixing immune complexes (IC) were significantly correlated with the positivity and intensity of mesangial C3d deposits. This study demonstrates glomerular deposition of C3d in patients with lupus nephritis and reveals a significant correlation between mesangial C3d deposition and disease activity.
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219
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Nagai H, Matsunaga M, Ogawa K, Kuwahara T, Kanatsu K, Pak CH, Hara A, Tamura T, Kono T, Kawai C. High level of plasma inactive renin in Bartter's syndrome. JAPANESE CIRCULATION JOURNAL 1984; 48:633-7. [PMID: 6381782 DOI: 10.1253/jcj.48.633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In 10 cases of Bartter's syndrome, plasma active and inactive renin (AR and IR) were measured by two different methods. First, plasma renin activity (PRA), and total renin activity (TRA) after activating IR with trypsin, were measured by radioimmunoassay (RIA) of angiotensin I (AI) generated from endogenous substrate. And secondly, plasma active renin concentration (ARC) and total renin concentration (TRC) were measured by RIA of AI generated in the presence of an excess of exogenous substrate. The difference between TRA and PRA, and between TRC and ARC were designated as inactive renin activity (IRA) and inactive renin concentration (IRC), respectively. Small amounts of IRA were found only in 2 cases and no IRA in 8 cases. However, the existence of large amounts of IR in Bartter's syndrome was revealed by the IRC determination. This suggests that the shortage of endogenous renin substrate, consumed by the markedly increased AR, may have interfered with the detection of IRA in Bartter's syndrome, though the IR is markedly increased as well. The molecular weights of AR and IR were determined by Sephadex G-100 gel filtration in 3 cases. Both AR and IR seemed to be smaller than those of normal subjects.
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220
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Yamagishi F, Tanaka F, Muraki N, Kouchi F, Sawada A, Ohiwa K, Kuwahara T, Maruyama K, Saitoh H. [A case of ACTH producing thymic carcinoid with Cushing's syndrome]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1984; 22:523-8. [PMID: 6094906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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221
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Kuwahara T, Kawai C. [Glomerular diseases and heart diseases]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1984; 42:1435-9. [PMID: 6482010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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222
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Matsuda M, Kuwahara T, Sugahara M. Depressive action of gamma-aminobutyraldehyde as a precursor of gamma-aminobutyric acid. Biochem Pharmacol 1984; 33:1369-72. [PMID: 6712741 DOI: 10.1016/0006-2952(84)90195-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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223
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Tsuchiya H, Higuchi S, Kuwahara T, Matsuda I, Mitsuya H, Yamaguchi K. Immunologic studies of peripheral blood in a child with hypogammaglobulinemia. Suggested mechanism for the development of malignant B-cell lymphoma. Cancer 1984; 53:1492-7. [PMID: 6321007 DOI: 10.1002/1097-0142(19840401)53:7<1492::aid-cncr2820530711>3.0.co;2-v] [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: 01/19/2023]
Abstract
A case of a 7-year-old boy with common variable hypogammaglobulinemia who developed B-cell-type non-Hodgkin's lymphoma is reported. Immunologic studies of his peripheral blood before the development of lymphoma revealed: (1) although peripheral T-cell and B-cell counts were normal, serum IgG and IgA levels were remarkably reduced; (2) DNA synthesis in response to phytohemagglutinin-P (PHA), concanavalin A (Con A), and pokeweed mitogen (PWM) stimulation were decreased; (3) DNA synthesis in response to EBV was enhanced; (4) in vitro IgG production with the patient's peripheral blood lymphocytes was significantly depressed; and (5) helper and suppressor activities of the patient's T-cells did not differ from that of normal controls. Six months after the investigation systemic involvement of malignant lymphoma appeared. The lymphoma was diagnosed as a lymphoblastic diffuse one. Lymph node cell marker analysis revealed that the lymphoblasts had surface mu and kappa chain, cytoplasmic IgM, and HLA-DR antigen. Blastogenesis of B-cell series may be suppressed by a feedback mechanism with the B-cells and antibody. In the current case, impairment of such a mechanism with defect of immunoglobulin production might finally induce malignant B-lymphoid proliferation.
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224
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Kuwahara T, Maruyama K, Mochizuki S, Seki Y, Sawada K. Oncocytic carcinoid of the lung. An ultrastructural observation. ACTA PATHOLOGICA JAPONICA 1984; 34:355-9. [PMID: 6741548 DOI: 10.1111/j.1440-1827.1984.tb07563.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A case of a 55-year-old female patient with an oncocytic variety of carcinoid tumor of the lung is reported. Electron microscopic observation of marked hyperplasia and increase in number of mitochondria in the tumor cells suggested it to be of oncocytic variety and membrane bound electron dense granules were characteristically found in the tumor cells which were histologically diagnosed as carcinoid.
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225
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Doi T, Kanatsu K, Nagai H, Kohrogi N, Kuwahara T, Hamashima Y. Immunoelectron microscopic studies of IgA nephropathy. Nephron Clin Pract 1984; 36:246-51. [PMID: 6369162 DOI: 10.1159/000183163] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Immunoelectron microscopy was used in this study of IgA nephropathy to examine the relationship between immune deposits and electron-dense deposits seen by electron microscopy, and these findings were correlated with the severity of mesangial proliferation. Immunoelectron microscopic studies for antihuman gamma-chain, alpha-chain, mu-chain, C3, and C3d were performed by the method of Nakane in 16 patients with IgA nephropathy. The patients with minimal glomerular involvement and focal proliferative glomerulonephritis showed electron-dense reaction products of IgA in the paramesangial area, while the patients with diffuse proliferative glomerulonephritis showed electron-dense reaction products of IgA throughout the enlarged mesangial matrix. Immunoelectron microscopy showed electron-dense reaction products of IgA at the same locations as the electron-dense deposits seen on electron microscopy. C3 deposits were identified in 15 out of the 16 patients, but were less dense than IgA deposits. Electron-dense reaction products of C3 contained both positive and negative sites in 7 patients. Extensive C3d deposits were found in all cases in association with IgA deposits. The locations of these deposits were the same as those of the IgA deposits. These findings suggest that C3 deposits dissociate from the immune deposits and that the locations of the immune deposits correlate well with the severity of mesangial proliferation.
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226
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Doi T, Kanatsu K, Nagai H, Suehiro F, Kuwahara T, Hamashima Y. Demonstration of C3d deposits in membranous nephropathy. Nephron Clin Pract 1984; 37:232-5. [PMID: 6379483 DOI: 10.1159/000183255] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
An immunoperoxidase technique for light microscopy was carried out in 16 patients with idiopathic membranous nephropathy in order to determine the role of the complement system in glomeruli. Although C3 deposits are found in 50% of the cases, C3d deposits are identified in all cases in association with IgG deposits. This suggests that C3 deposits are degraded and dissociated from immune complexes. Patients with glomerular C3 deposits showed more proteinuria than those without glomerular C3 deposits. The presence of C3 deposits indicates the importance of proteinuria in human membranous nephropathy.
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227
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Kuwahara T, Ikehara Y, Kanatsu K, Doi T, Nagai H, Nakayashiki H, Tamura T, Kawai C. 2 cases of potassium bromate poisoning requiring long-term hemodialysis therapy for irreversible tubular damage. Nephron Clin Pract 1984; 37:278-80. [PMID: 6462318 DOI: 10.1159/000183265] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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228
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Harada S, Kuwahara T, Kido M, Kajiki A, Ishikura Y, Koide O. Solitary pulmonary metastasis of choroidal malignant melanoma: report of an unusual case. Endoscopy 1983; 15:363-4. [PMID: 6653500 DOI: 10.1055/s-2007-1021558] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This brief report describes an unusual case of a patient who had a solitary pulmonary metastasis from an intraocular tumor removed 9 years previously. He was diagnosed by bronchofiberscopy and subjected to right middle lobectomy. Pathological examination revealed that the lesion resulted from direct metastasization to the bronchial wall.
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229
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Kuwahara T, Kanatsu K, Doi T, Nagai H, Oohashi H, Yoshida H. [Case of potassium bromate poisoning requiring long-term hemodialysis therapy for irreversible tubular necrosis]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 1983; 72:452-7. [PMID: 6886510] [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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230
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Kuwahara T, Yoshimoto I, Ito A. Comparative immunochemical studies of sulfite oxidases of vertebrate livers. J Biochem 1982; 92:1925-31. [PMID: 7161265 DOI: 10.1093/oxfordjournals.jbchem.a134123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
1. The sulfite oxidases from various vertebrates, including rat, rabbit, chicken, frog, and eel, were partially purified and their physiochemical, kinetic, and immunochemical properties compared. The physicochemical and kinetic properties of these five enzymes were similar. 2. Antibody against the molybdenum-containing peptide prepared from purified rat liver sulfite oxidase was raised in rabbits. In Ouchterlony double diffusion and quantitative immunoprecipitation tests, the antibody could form precipitates with the enzymes from rats and rabbits, but no reaction was observed with enzymes from other sources. 3. The sulfite-cytochrome c reductase activity of the enzymes from these five animals were inhibited by the antibody, though the enzymes from chicken, frog, and eel were less sensitive to the antibody than those from rat and rabbit. 4. The inhibition of binding between 3H-labeled rat sulfite oxidase and its antibody by unlabeled enzymes from other animals demonstrated that 10 to 20% of the antibody could cross-react with these enzymes.
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231
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Hata Y, Uchino J, Sato K, Sasaki F, Une Y, Naito H, Manabe K, Kuwahara T, Kasai Y. Establishment of an experimental model of human hepatoblastoma. Cancer 1982; 50:97-101. [PMID: 6177394 DOI: 10.1002/1097-0142(19820701)50:1<97::aid-cncr2820500118>3.0.co;2-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Establishment of xenografts or cell culture lines in which the alpha-fetoprotein (AFP) characteristic of clinical hepatoblastoma persists have been difficult. The serially transplantable strain (HB-3) of highly AFP-producing hepatoblastoma was successfully established in nude mice. And a highly AFP producing cell line (c-HB-3) is easily obtained by HB-3. This strain and line give us an ideal experimental model of hepatoblastoma in vivo and in vitro.
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232
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Tanaka F, Fukuma S, Sawada K, Seki Y, Ishida I, Kuwahara T. [Surgery of congenital esophagobronchial fistula in an adult with esophageal diverticulum and anomalous bronchial division]. [ZASSHI] [JOURNAL]. NIHON KYOBU GEKA GAKKAI 1982; 30:1185-9. [PMID: 6816869] [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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233
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Kuwahara T, Kani S, Kikuchi T, Kanai S, Kubota K. [Nursing of patients with femoral fractures. Evaluation of the nursing process - a discussion]. KURINIKARU SUTADI = CLINICAL STUDY 1982; 3:297-305. [PMID: 6918694] [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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234
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Tanaka F, Sawada K, Ishida I, Seki Y, Ohmori Y, Kuwahara T, Maruyama K, Sagara T. Prosthetic replacement of entire left hemidiaphragm in malignant fibrous histiocytoma of the diaphragm. J Thorac Cardiovasc Surg 1982; 83:278-84. [PMID: 6276620] [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: 01/19/2023]
Abstract
A case of primary malignant fibrous histiocytoma of the diaphragm which, to our knowledge, is the first record in the world literature, is presented. It occupied almost the entire left hemidiaphragm and was surgically removed with the left lower pulmonary lobe, stomach, colon, and spleen. The entire left hemidiaphragm then was replaced with Marlex mesh. Prosthetic replacement of the entire hemidiaphragm, which has not been previously reported, was successfully performed with preservation of pulmonary function on the affected side. The patient died of brain metastases of malignant fibrous histiocytoma more than 4 months postoperatively. Diagnosis of diaphragmatic tumors and a technique which involves the use of a prosthesis are discussed.
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235
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Boki K, Tanada S, Matsui T, Kuwahara T, Kotani A, Arai K, Takahashi H. Intraparticle diffusivity of methylene blue into porous activated carbon. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 1981; 27:610-615. [PMID: 7326483 DOI: 10.1007/bf01611071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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236
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Tanaka F, Sawada K, Seki Y, Ishida I, Fukuma S, Kuwahara T, Maruyama K. [Atypical bronchial carcinoid developing left atrium (author's transl)]. [ZASSHI] [JOURNAL]. NIHON KYOBU GEKA GAKKAI 1981; 29:1818-23. [PMID: 7341706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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237
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Tanaka F, Fukuma S, Sawada K, Seki Y, Ishida I, Kuwahara T. [Bilateral chylothorax and chyloperitoneum associated with signet-ring cell carcinoma of the lung (author's transl)]. [ZASSHI] [JOURNAL]. NIHON KYOBU GEKA GAKKAI 1981; 29:1064-9. [PMID: 6271878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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238
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Tsukamura M, Inoue T, Kuwahara T, Yoshimoto K, Nakajima N. [Clinical effect of chemotherapy including minocycline on lung infection due to Mycobacterium avium-Mycobacterium intracellulare (author's transl)]. KEKKAKU : [TUBERCULOSIS] 1981; 56:57-61. [PMID: 7265604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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239
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Kuwahara T, Yoshida A, Kanatsu K, Nagai H, Ito S. [A case of lactic acidosis with malignant lymphoma (reticulum cell sarcoma)--problems in treatment and usefulness of hemodialysis (author's transl)]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 1980; 69:548-53. [PMID: 6997415 DOI: 10.2169/naika.69.548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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240
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Inaniwa Y, Kuriki K, Kuwahara T, Sakurai I. [Comparative studies on various fixation and staining methods for bone marrow specimens (author's transl)]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1978; 26:971-5. [PMID: 83416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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241
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Skinsnes OK, Kuba BA, Chang PH, Kuwahara T. In vitro cultivation of leprosy bacilli in hyaluronic acid-based medium. 2. Progress and developing concept of the role of hyaluronic acid suggested by culture and armadillo infection studies. INTERNATIONAL JOURNAL OF LEPROSY AND OTHER MYCOBACTERIAL DISEASES : OFFICIAL ORGAN OF THE INTERNATIONAL LEPROSY ASSOCIATION 1978; 46:394-413. [PMID: 32143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Progress is summarized relating to the verification, identification of M. leprae and understanding of the process of adaptation the pathogen passes through before in vitro growth takes place. It is recognized that hyaluronic acid apparently does not serve as a source of energy but the possibility is presented that it plays a role in the reconstruction of M. leprae cell walls made "leaky" by constant intracellular life. This apparently occurs, in culture, initially by the development of coccoid forms which after a period of weeks finally give rise to acid-fast bacilli. If these understandings are correct and the bacillary cell walls are vitated by enzyme and other action occasioned by intra-macrophage existence, then cell wall antigenicity may also be vitiated or altered by intracellular parasitism and restored by in vitro cultivation. The possible importance of this hypothesis in the understanding of immunologic responses in leprosy, and in the possibilities for therapeutic use and vaccine development are discussed.
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Abstract
Childhood coronary sclerosis was studied histologically, histochemically immunohistochemically and biochemically on 60 autopsy cases aged from new-born to 20 years. Intimal thickening often started even in the newborn babies particularly at branching or bending points of the arteries, where fibrocellular proliferation with acid mucopolysaccharide accumulation was the main histological feature. Microthrombi were occasionally demonstrated even in infants, and fatty streaks appeared generally in the second decade. Microthrombi were usually smaller and fewer than fatty streaks. Beta-lipoprotein and fibrinogen infiltrations into intima were proven in some cases. Mural vascularization was occasionally observed especially in the areas beneath intimal thickening. Pressure effect of the blood stream and anatomically specific points in the arteries seemed to be important as initial factors of coronary sclerosis, where plasma constituents might pass in an easier manner into intimas by increased permeability. Secondarily mural capillaries might play some role in developing atheromas which would produce an eccentrically located luminal obstruction later in adulthood, by local circulatory disturbances within the arterial walls.
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243
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Ito A, Kuwahara T, Mitsunari Y, Omura T. Distribution of hepatic sulfite oxidase among subcellular organelles and its intraorganelle localization. J Biochem 1977; 81:1531-41. [PMID: 408334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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244
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Kuwahara T, Matsuda J, Kono K, Tsuchiya T, Okada K. [Evaluation of CRP in healthy individuals with special reference to the effect of exercises]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1974; 22:172. [PMID: 4475777] [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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245
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Kaneko K, Taniya S, Kuwahara T, Kaneko H, Tsukio T. [Fetal patella]. NIHON IKA DAIGAKU ZASSHI 1971; 38:66-8. [PMID: 5558464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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246
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Takatani O, Kumaoka S, Sakauchi N, Kuwahara T, Matsushima S. A case report of pituitary tumor presenting as Forbes-Albright syndrome: determination of pituitary prolactin content. ENDOCRINOLOGIA JAPONICA 1967; 14:95-100. [PMID: 4168414 DOI: 10.1507/endocrj1954.14.95] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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