276
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Seki J, Shimada N, Takahashi K, Takita T, Takeuchi T, Hoshino H. Inhibition of infectivity of human immunodeficiency virus by a novel nucleoside, oxetanocin, and related compounds. Antimicrob Agents Chemother 1989; 33:773-5. [PMID: 2787618 PMCID: PMC172532 DOI: 10.1128/aac.33.5.773] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Oxetanocin is a novel nucleoside containing a 4-membered sugar, oxetanosyl-N-glycoside, and adenine. The effects of oxetanocin and related compounds on the infectivity of human immunodeficiency virus (HIV) were examined. They inhibited HIV infectivity in vitro. Allopurinol and mycophenolic acid produced additive anti-HIV effects when added with these compounds.
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277
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Shimada N. [Lutein cyst]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1989; 43:431. [PMID: 2601136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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278
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Shimada N. [Application of NST (non-stress test) to detect low risk class 3]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1989; 43:333. [PMID: 2761087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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279
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Shimada N. [ECMO (extracorporeal membrane oxygenation)]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1989; 43:257. [PMID: 2746994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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280
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Shimada N. [Papilloma virus infection of mothers and infants]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1989; 43:171. [PMID: 2544752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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281
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Kimura S, Takemura S, Onodera H, Shigeta M, Nakai M, Kondo M, Shobayashi S, Kondo S, Takahashi T, Shimada N. [A case of pseudolymphoma of the lung with cough and fever]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1989; 27:92-7. [PMID: 2747064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This case report presents a 48-year-old woman who had been suffering from cough and fever for 5 years. A large mass in the right lung was pointed out. Even after various examinations, we couldn't resolve the difficult diagnostic problems involved, but it was clear that there were no signs of a malignant tumor. We suspected a large benign tumor or pulmonary sequestration. Right lower lobectomy was performed and histological examinations of the resected tumor revealed lymphoproliferative disorder. Microscopic examinations of the specimen disclosed monotonous lymphoid cells proliferation (small to medium size) without definite lymph follicles or germinal centers. Lymph follicles were clearly demonstrated with the immunoperoxidase method. These findings were interpreted to be consistent with what has been recently called pseudolymphoma of the lung and prompted discussions on the reasonableness of criteria for the diagnosis of various pseudolymphoma and effective immunological examinations for the clarification of the etiology.
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282
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Shimada N. [Infectious erythema and hydrops fetalis]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1989; 43:83. [PMID: 2724629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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283
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Shimizu H, Morimoto K, Yoshimine T, Shimada N, Masana Y, Hayakawa T, Hashimoto T. [S-adenosyl-L-methionine concentration in cerebral interstitial fluid monitored by intracerebral microdialysis]. NO TO SHINKEI = BRAIN AND NERVE 1988; 40:1163-8. [PMID: 3248194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Ketamine-anesthetized gerbils were implanted with 0.5 mm diameter microdialysis tubing through the cortex, hippocampus and thalamus with a stereotaxic instrument. The cannula was perfused with artificial cerebrospinal fluid at a flow rate of 2 microliters/min. Samples of the perfusate representing the cerebral interstitial fluid were collected and subsequently analyzed for their content of S-adenosyl-L-methionine (SAM) with high performance liquid chromatography (HPLC). In vitro tests using the dialysis cannula gave SAM recovery which varied from 3.44 +/- 0.31% (n = 3) at a perfusion flow rate of 8 microliters/min to 43.8 +/- 3.81% (n = 3) at 0.5 microliters/min (mean +/- SEM). The in vivo SAM content of the perfusate was studied and the endogenous SAM level in cerebral interstitial fluid of gerbil was 3.49 +/- 1.52 nmol per ml (n = 3). Intraperitoneal injection of SAM (250 mg/kg) produced 10-fold increases in the perfusate SAM concentration. After the experiment the brains were checked by immunopathological study using anti-albumin antibody to examine the degree of damage to the blood-brain barrier permeability. These results show that intracerebral microdialysis offers several potential advantages for studies of extracellular neurochemistry.
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284
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Shimada N. [A new record (10 days) in maintaining a fetus in an artificial uterus]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:1033. [PMID: 3230677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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285
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Shimada N. [Rupture of the renal artery during pregnancy]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:937. [PMID: 3230669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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286
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Shimada N. [Midwifery education of the future]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:863. [PMID: 3204726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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287
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Shimada N. [Expectant mothers and seat belts]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:775. [PMID: 3204739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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288
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Shimada N. [Application of hysteroscopy to CVS (chorionic villi sampling)]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:693. [PMID: 3199539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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289
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Nishiyama Y, Yamamoto N, Takahash K, Shimada N. Selective inhibition of human cytomegalovirus replication by a novel nucleoside, oxetanocin G. Antimicrob Agents Chemother 1988; 32:1053-6. [PMID: 2847638 PMCID: PMC172342 DOI: 10.1128/aac.32.7.1053] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A novel nucleoside with an oxetanosyl-N-glycoside has been recently isolated from a culture filtrate from Bacillus megaterium and named oxetanocin A (N. Shimada, S. Hasegawa, T. Harada, T. Tomisawa, A. Fujii, and T. Takita, J. Antibiot. 39:1623-1625, 1986). In this study, we evaluated the antiherpesvirus activity of oxetanocin A and its derivatives and found that 9-(2-deoxy-2-hydroxymethyl-beta-D-erythro-oxetanosyl)guanine (OXT-G) was very potent and selective in inhibiting the replication of human cytomegalovirus (HCMV) in vitro. The median effective concentration for HCMV strain AD169 was 1.0 microgram/ml, and that for herpes simplex virus type 2 strain 186 was 3.5 micrograms/ml. The selectivity index, based on the ratio of the median inhibitory concentration for cell growth of human diploid fibroblasts to the median effective concentration for HCMV plaque formation, was more than 300. The synthesis of HCMV-induced late polypeptides such as the 150,000-molecular-weight capsid and the 68,000-molecular-weight major matrix proteins was strongly suppressed when OXT-G (5 micrograms/ml) was added to the cultures at the beginning of infection. At this concentration of OXT-G, the amount of HCMV DNA detected in the drug-treated infected cells was less than 1/10 of that detected in the infected control cells. The results suggest that the mode of action of OXT-G is inhibition of viral replication by impairing the viral DNA synthesis.
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290
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Shimada N. [Fetal chylothorax (congenital chylothorax)]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:604. [PMID: 3193649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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291
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Yuasa S, Saitoh J, Nakanishi S, Shimada N. [Determination of anti-ATLA antibody in plasma]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1988; 36:851-4. [PMID: 3148774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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292
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Shimada N. [Prostaglandin metabolism in glomeruli from streptozotocin diabetic rats and glomerular mesangial cells]. NIHON JINZO GAKKAI SHI 1988; 30:695-702. [PMID: 3172568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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293
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Shimada N. [Fetal and neonatal coma. Impressions at the 6th Symposium of the Japanese Society of Perinatology]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:525. [PMID: 3418975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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294
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Suzukake-Tsuchiya K, Hori M, Shimada N, Hamada M. Mode of action of deoxypheganomycin D on Mycobacterium smegmatis ATCC 607. J Antibiot (Tokyo) 1988; 41:675-83. [PMID: 3384753 DOI: 10.7164/antibiotics.41.675] [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: 01/05/2023]
Abstract
Deoxypheganomycin D, a specific inhibitor of mycobacteria, inhibits the growth in vitro of Mycobacterium smegmatis ATCC 607 (M. 607) bacteriostatically at concentrations as high as 7 X 10(-5) M. It shows no cross-resistance to paromomycin, capreomycin, viomycin, streptothricin, kanamycin and streptomycin. Deoxypheganomycin D at 2.8 X 10(-7) M where the cell growth of M. 607 is only partially inhibited does not significantly inhibit DNA, RNA or protein synthesis but leads to marked decrease (13% of control) in [14C]glycerol-derived radioactivity in cell-walls. In the presence of 7 X 10(-6) M deoxypheganomycin D, the influx of leucine but not thymidine is affected while the reverse is true with efflux. The data suggest that the effect of deoxypheganomycin D on M. 607 may be related to both the cell membrane and specific mycobacterial lipid like components of the cell-wall.
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295
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Shimada N. [Routine examination during pregnancy (3)]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:439. [PMID: 3386005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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296
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Yasumura T, Matsui S, Hamajima T, Nagashima K, Yamagishi H, Aikawa I, Oka T, Nakae T, Shimada N. Infiltrating ductal carcinoma developing within cystosarcoma phyllodes--a case report. THE JAPANESE JOURNAL OF SURGERY 1988; 18:326-9. [PMID: 2841520 DOI: 10.1007/bf02471450] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Malignancy in cystosarcoma phyllodes is uncommon and often confined to the stromal element. An extremely rare case of infiltrating ductal carcinoma developing within the stroma of cystosarcoma phyllodes is reported herein. A breast tumor with a diameter of 15 cm, which was diagnosed as cystosarcoma phyllodes, was excised from the right breast of a 47-year old woman. The histopathological examination revealed that hyperplastic ductal epithelial cells with dark cytoplasm and enlarged hyperchromatic nuclei were infiltrating the stroma. Thus, a diagnosis of ductal carcinoma within cystosarcoma was made. Subsequently, a standard radical mastectomy was performed. No recurrence or metastasis has been observed over the post-operative period of 5 years and 6 months.
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297
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Kimura N, Shimada N. Membrane-associated nucleoside diphosphate kinase from rat liver. Purification, characterization, and comparison with cytosolic enzyme. J Biol Chem 1988; 263:4647-53. [PMID: 2832402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Previous studies from this laboratory have proposed that membrane-associated nucleoside diphosphate kinase (m-NDP kinase) may play a role in regulation of adenylate cyclase by channeling GTP, an essential cofactor of adenylate cyclase regulation, into GTP-binding protein (Gs) in a hormone-dependent manner. To understand the true role of m-NDP kinase, in the present study, the m-NDP kinase was solubilized and purified to apparent homogeneity from rat liver purified plasma membranes and characterized in comparison with the cytosolic enzyme purified from the same tissue (s-NDP kinase). Some physical properties determined were: molecular weight (monomer), 18,300; sedimentation coefficient (s20,w), 6.2 S; isoelectric point (pI), 6.0. These values and kinetic parameters of the m-NDP kinase were almost identical to those of the s-NDP kinase whose characteristics were more extensively studied. A peptide mapping study of the 125I-labeled m- and s-NDP kinases gave essentially identical patterns. Polyclonal antibodies against the s-NDP kinase, which also cross-reacted with the m-NDP kinase, were prepared. Immunoblotting studies with the affinity-purified antibodies revealed that the monomer molecular weight of the purified m- and s-NDP kinases was identical to the values of unpurified enzymes present in membranes and crude extract. These results demonstrate that the purified m-NDP kinase underwent no remarkable modification during solubilization and purification, and that the m- and s-NDP kinases are quite similar in protein structure, if at all different. The physiological relevance of the m-NDP kinase in relation to the adenylate cyclase system is discussed.
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298
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Shimada N. [Routine tests during pregnancy. (1)]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:265. [PMID: 3373804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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299
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Kimura N, Shimada N. Direct interaction between membrane-associated nucleoside diphosphate kinase and GTP-binding protein(Gs), and its regulation by hormones and guanine nucleotides. Biochem Biophys Res Commun 1988; 151:248-56. [PMID: 2831881 DOI: 10.1016/0006-291x(88)90586-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In previous studies we have proposed that the membrane-associated nucleoside diphosphate kinase (m-NDP kinase) may play a role as a GTP channeling machinery for adenylate cyclase regulation by hormones. In this study, whether the m-NDP kinase has a direct interaction with the component (GTP-binding protein (Gs)) of the glucagon- and beta-adrenergic agonist-sensitive adenylate cyclase systems in rat liver membranes was examined by extraction with octylglucoside, followed by immunoprecipitation by affinity-purified monospecific anti-NDP kinase antibodies. The results demonstrated that the m-NDP kinase and the Gs were extractable as a complexed form and that the complex formation was reversibly regulated, through cell surface receptors, by hormones which had an ability to cause activation of the rat liver adenylate cyclase. Also, it was suggested that guanine nucleotides rather than hormones were primary regulators of the m-NDP kinase-Gs interaction. These results were discussed in relation to the regulatory cycle of the Gs of adenylate cyclase system.
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300
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Shimada N. [Validity of apparent delayed, transient bradycardia and variant, transient bradycardia]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1988; 42:86. [PMID: 3373788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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