1351
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Seto H, Nakayama H, Ogita T, Furihata K, Mizove K, Otake N. Studies on the ionophorous antibiotics. XXI. Structural elucidation of a new polyether antibiotic 6016 by application of the empirical rules in 13C-NMR spectroscopy. J Antibiot (Tokyo) 1979; 32:244-6. [PMID: 457584 DOI: 10.7164/antibiotics.32.244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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1352
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Seto H, Mizove K, Nakayama H, Furihata K, Otake N, Yonehara H. Studies on the ionophorous antibiotics. XX. Some empirical rules for structural elucidation of polyether antibiotics by 13C-NMR spectroscopy. J Antibiot (Tokyo) 1979; 32:239-43. [PMID: 457583 DOI: 10.7164/antibiotics.32.239] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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1353
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Nakayama H, Hayashi R. Isolation and characterization of Escherichia coli mutants auxotrophic for thiamine phosphates. Methods Enzymol 1979; 62:94-101. [PMID: 220507 DOI: 10.1016/0076-6879(79)62198-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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1354
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Fujita T, Watanabe S, Suga K, Nakayama H. The Reaction of Carboxylic Acids with Conjugated Olefins Using Sodium Naphthalenide in the Presence ofN,N,N′,N′- Tetramethylethylenediamine. SYNTHESIS-STUTTGART 1979. [DOI: 10.1055/s-1979-28664] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1355
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Nakayama H. Body thermal drain under hyperbaric dry heliox environment with undersea excursion dive. JOURNAL OF HUMAN ERGOLOGY 1978; 7:177-83. [PMID: 756451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of undersea experiments were undertaken at the Japan Marine Science and Technology Center since 1972 in order to investigate thermal drain due to higher heat conductivity of helium which is essential as a breathing medium in deep-sea diving substituting for nitrogen in the air. While the less narcotic effect and the low density of the gas is adequate for maintaining better respiratory functions of divers, distortion of the diver's voice due to low density and thermal drain should be overcome. Measuring body heat loss in a hyperbaric dry environment, wet pot thermistors and heat flux transducers were applied at four to seven points on the body surface before, during, and after hyperbaric exposure to 11 ATA. As a result it was acknowledged that heat loss from the body surface, in hyperbaric heliox environment, was greater than that at the 1 ATA condition. Further, additional heat loss during immersion proved significant. The other modifying factors revealed were ambient water temperature, kinds of diving suits or underwear, and others.
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1356
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Nakayama H, Fujii M, Miura K. Subcellular localization of glycolytic key enzymes in germinating castor bean endosperm. ACTA ACUST UNITED AC 1978. [DOI: 10.1093/oxfordjournals.pcp.a075651] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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1357
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Nakayama H, Maeda S. [An autopsy case of Cockayne's syndrome (author's transl)]. Rinsho Shinkeigaku 1978; 18:470-2. [PMID: 699443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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1358
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Tsutsumi H, Nakayama H, Shinoda K. Some characteristics of polyoxyethylene sorbitol tetra-oleate: Oligomer type emulsifier. J AM OIL CHEM SOC 1978. [DOI: 10.1007/bf02669931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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1359
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Matsuda M, Nakayama H, Arita H, Morlock JF, Claybaugh J, Smith RM, Hong SK. Physiological responses to head-out immersion in water at 11 ATA. UNDERSEA BIOMEDICAL RESEARCH 1978; 5:37-52. [PMID: 636073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiorespiratory, thermal, and renal responses to a 30-min head-out immersion in 15 degree C water were studied at 1-ATA air and 11-ATA helium-oxygne environments in four male subjects wearing dry suits. Cardiorespiratory responses to immersion (reductions in heart rate, expiratory reserve volume, vital capacity, and thoracic impedance; and increases in stroke volume, cardiac output, and inspiratory capacity) were comparable at both pressures. However, thermal responses to immersion (a reduction in mean skin temperature and increases in skin heat flux and suit conductance) were significantly greater at 11 ATA compared to those at 1 ATA. The rate of urinary excretion of norepinephrine increased significantly during and after immersion at 11 ATA but not at 1 ATA. In contrast, the urinary excretion of epinephrine was not altered by pressure or immersion. The immersion diuresis was greater and lasted longer at 11 ATA than at 1 ATA although there was no difference in the endogenous creatinine excretion . This diuresis was accompanied by a significant natriuresis which was more marked at 1 ATA than at 11 ATA. At 1 ATA, the urinary excretion of both aldosterone and antidiuretic hormone (ADH) decreased during immersion. At 11 ATA, the rate of excretion of these hormones before immersion was lower compared to that at 1 ATA and did not change significantly during immersion. These results indicate that immersion in a hyperbaric helium-oxygen environment presents a greater cold stress than at 1-ATA air, and also that immersion diuresis and natriuresis at high pressure may be induced by a factor other than inhibition of aldosterone and ADH.
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1360
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Nakagawa S, Saito N, Nakayama H, Sasaki T, Watanabe T, Aoki S. Detection of IgE insulin antibody with radioallergosorbent test. Diabetologia 1978; 14:33-8. [PMID: 627330 DOI: 10.1007/bf00429705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An in vitro method for detecting IgE insulin antibody using the principle of the radioallergosorbent test (RAST) is described. In six patients with insulin allergy, the RAST values were higher than in normal persons or insulin-treated diabetics without insulin-allergy. No differences were observed between normal persons and insulin-treated diabetics without insulin-allergy. Moreover, it was observed that in one patient treated with highly-purified insulin, there was a gradual decrease of RAST value parallel to the radioinsulin binding activity and clinical allergic symptoms. The RAST value of insulin is slightly inhibited by non-IgE antibodies and is, therefore, a semiquantitative value. However, the RAST is simple to perform and reproducible; It therefore is very useful in the detection of IgE insulin antibodies.
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1361
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Fujiwara S, Kobayashi S, Nakayama H. Development of a minimal medium for Streptococcus mutans. Arch Oral Biol 1978; 23:601-2. [PMID: 281207 DOI: 10.1016/0003-9969(78)90280-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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1362
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Inamoto Y, Aigami K, Kadono T, Nakayama H, takatsuki A, Tamura G. Biological active polycycloalkanes. 4. Phosphoric esters of trimethylenenorbornyl alcohols. J Med Chem 1977; 20:1371-4. [PMID: 915895 DOI: 10.1021/jm00221a003] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Secondary (6) and tertiary (8) phosphates of exo-5,6-trimethylenenorborn-exo-2-yl alcohol (exo-tricyclo-[5.2.1.0(2,6)]dec-exo-8-yl alcohol, 3) and a secondary ester (9) of a mixture of exo-tricyclo[5.2.1.0(2,6)]dec-3-en-8- and -9-yl alcohol (2) were prepared. The most convenient route to 6 was direct esterification of phosphoric acid with 3. 9 was obtainable by the addition of phosphoric acid to endo-dicyclopentadiene (1). These phosphates were tested in vitro for antiviral activity against Newcastle disease virus using a monolayer culture of chick embryo fibroblasts. 6 was found ca. twice more potent than, while 8 was as active as, amantadine hydrochloride under the present test conditions.
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1363
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Kato Y, Nakayama H. Reversal of ultraviolet-killing in an Escherichia coli lon mutant. Differential effects of protein synthesis inhibitors. BIOCHIMICA ET BIOPHYSICA ACTA 1977; 477:371-8. [PMID: 142511 DOI: 10.1016/0005-2787(77)90255-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The effects of protein synthesis inhibition in post-irradiation treatments on the ultraviolet-survival of an Escherichia coli lon mutant were examined with six antibiotics. Kasugamycin was the most potent in enhancing the ultraviolet survival, whereas puromycin promoted ultraviolet killing rather than survival. Rifampicin, chloramphenicol, chlortetracycline, and spectinomycin were weakly active in the enhancement of survival.
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1364
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Nakayama H, Nakagawa S. Influence of streptozotocin diabetes on intestinal 3-hydroxy-3-methylglutaryl coenzyme A reductase activity in the rat. Diabetes 1977; 26:439-44. [PMID: 140087 DOI: 10.2337/diab.26.5.439] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Studies were undertaken to examine cholesterogenesis in the intestine of streptozotocin-diabetic rats by measuring incorporation of [2(-14)C] acetate into cholesterol and 3-hydroxy-3-methylgultaryl CoA reductase (HMG-CoA reductase, EC 1.1.1.34) activity. In these diabetic rats, the intestinal mucosal weight and food consumption were markedly high. The incorporation of [2(-14)C] acetate into cholesterol was significantly increased in all diabetic intestinal segments. However, the rates of production of fatty acids and carbon dioxide were not affected. Hepatic HMG-CoA reductase activities were markedly reduced during both the diurnal high and low periods in these diabetic rats, and there was no diurnal variation. In contrast, the specific activities of this enzyme in jejunal crypt cells during both the diurnal high and low periods were significantly higher in these diabetic rats without loss of diurnal variation. Total reductase activity per segment of intestine in jejunal and ileal mucose (villi + crypt cells) was increased in these diabetic rats. Control rats had higher total and specific activity of ileal mucosal (velli + crypt cells) reductase than of jejunal mucosal reducatse during the diurnal high period. The jejunal-ileal gradient in reductase activity and the incorporation of [2(-14)C] acetate into cholesterol did not change significantly with streptozotocin-diabetic rats. The results indicate that in streptozotocin-diabetic rats, hepatic cholesterogenesis decreases but intestinal synthesis increases.
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1365
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Kanaoka Y, Takahashi T, Nakayama H. A new fluorogenic substrate for aminopeptidase. Chem Pharm Bull (Tokyo) 1977; 25:362-3. [PMID: 852099 DOI: 10.1248/cpb.25.362] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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1366
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Nakayama H, Harada R, Toda M. [Pigmented cosmetic dermatitis induced by R-219 (a tar pigment)]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1977; 35:213-6. [PMID: 557617] [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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1367
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Watanabe K, Isoi K, Nakayama H, Hayashi R. Some properties of a mutant strain of Escherichia coli requiring high concentrations of 2-methyl-4-amino-5-hydroxymethylpyrimidine. J Nutr Sci Vitaminol (Tokyo) 1977; 23:81-93. [PMID: 195024 DOI: 10.3177/jnsv.23.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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1368
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Asano Y, Nakayama H, Yazaki T, Ito S, Isomura S. Protective efficacy of vaccination in children in four episodes of natural varicella and zoster in the ward. Pediatrics 1977; 59:8-12. [PMID: 190584] [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: 12/13/2022] Open
Abstract
It was previously reported that a live varicella vaccine (Oka strain) has been developed and that the immediate vaccination of hospitalized children was effective for prevention of spread of varicella in a ward. Six to nine months later, there were four separate episodes of varicella and zoster in the same ward. Eighteen children (11 with nephrotic syndrome, 6 with nephritis, and 1 with hepatitis) with no history of varicella were inoculated with a live vaccine before or immediately after admittance or occurence of the varicella and zoster cases. Twelve of them had been receiving steroid therapy and 15 of the 18 were found to be seronegative by complement fixation and neutralization tests before the vaccination. All of them became seropositive after vaccination without any clinical symptoms. The longest period between vaccination and exposure was nine months. None of the vaccinees exhibited varicella symptoms after exposure. Serological follow-up of ten vaccinated children was done, and booster responses were observed in some of them after exposure. These results suggest that the live vaccine affords immunity to the recipients. If hospitalized children are vaccinated before or immediately after exposure, isolation of the patient is unnecessary.
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1369
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Asano Y, Nakayama H, Yazaki T, Kato R, Hirose S. Protection against varicella in family contacts by immediate inoculation with live varicella vaccine. Pediatrics 1977; 59:3-7. [PMID: 190583] [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: 12/13/2022] Open
Abstract
A live varicella vaccine (Oka strain) was given to susceptible household contacts of varicella to test the protective efficacy of the vaccination. Twenty-six contacts of 21 families were vaccinated, usually within three days after onset of the index cases. None of the vaccinated children developed clinical symptoms of varicella. Eighteen of 24 sera obtained before vaccination were found to be seronegative by complement fixation and neutralization tests. Seroconversion was observed in all of the 18. On the other hand, all of 19 unvaccinated contacts in the 15 families, who served as controls, showed typical manifestations of varicella from 10 to 33 days after onset of the index varicella cases. In three families, where only one sibling contact received vaccine and the other was an unvaccinated control, none of the vaccinated children showed any clinical symptoms while unvaccinated controls exhibited typical varicella symptoms 10 to 14 days after the onset of the index cases. These results indicate that varicella is prevented in household contacts by vaccination within three days following exposure.
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1370
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1371
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Nakayama H, Kunimoto N, Harada R, Toda M. Pustulosis palmaris et plantalis investigated from the viewpoint of metal allergy (II) (author's transl). NIHON HIFUKA GAKKAI ZASSHI. THE JAPANESE JOURNAL OF DERMATOLOGY 1976; 86:703-7. [PMID: 1034799] [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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1372
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Nakayama H, Fujii M, Miura K. Partial purification and some regulatory properties of pyruvate kinase from germinating castor bean endosperm. ACTA ACUST UNITED AC 1976. [DOI: 10.1093/oxfordjournals.pcp.a075321] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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1373
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Maeda S, Nakayama H, Isaka K, Aihara Y, Nemoto S. Familial unusual encephalopathy of Binswanger's type without hypertension. FOLIA PSYCHIATRICA ET NEUROLOGICA JAPONICA 1976; 30:165-77. [PMID: 971885 DOI: 10.1111/j.1440-1819.1976.tb00119.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Clinical and pathological studies have been conducted on two brothers with unusual encephalopathy of Binswanger's type. The disease started in the third decade with steady progressive course leading to death in eight or nine years. The clinical picture was summarized as a combination of organic dementia, extrapyramidal disorders associated with pseudobulbar symptoms and marked pyramidal tract signs. The blood pressure remained always normal during the course. Pathologically, there were diffuse and focal demyelination with sparing of U-fibers, multiple small foci of perivascular softening in the cerebral white matter and in the basal ganglia and severe arteriosclerotic changes of memingeal small arteries and long arteries with 100 to 400 micron caliber in the cerebral white matter. Vessel changes consisted of fibrous intimal proliferation, severe hyalinosis and splitting of intima and/or internal elastic membrane. The histopathological process belonged to the category of subcortical arteriosclerotic encephalopathy of Binswanger's type. There has been some discussion as to differential diagnosis among various forms of vasculitis such as cerebral endangiitis obliterans, periarteritis nodosa, systemic lupus erythematosus, rheumatic vascular disease and giant cell arteritis.
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1374
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Yokoi S, Nakayama H, Negishi T. Biochemical studies on tissues from a patient with Lafora disease. Clin Chim Acta 1975; 62:415-23. [PMID: 170019 DOI: 10.1016/0009-8981(75)90093-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tissues from the cerebral cortex, liver and myocardium of a patient with Lafora disease were obtained at autopsy and were studied biochemically. 1. Glucose content in the myocardium and liver was almost nil while that in the controls was 0.66 mg/g wet weight in the former and 8.80 mg/g wet weight in the latter. Glycogen content in the cerebral cortex and myocardium was about 10 and 3 times more than in controls. 2. Polyglucosan extracted from the cerebral cortex, liver and myocardium had a longer exterior glucose chain than that in the liver of the control but a normal, alpha or beta 1,4-glucosidic linkage was observed. 3. The activities of glucose-6-phosphatase and amylo-1,6-glucosidase in the cerebral cortex, liver and myocardium were well preserved. The activities of acid maltase in the three organs mentioned above and of neutral maltase in the myocardium were elevated twice and one and half times more than the control. Phosphorylase levels in the myocardium were extremely small, while in the cerebral cortex and liver normal activities were observed. In light of these findings, glycogen metabolism in Lafora disease is discussed.
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1375
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Abstract
The cell lethality and DNA fragmentation caused by phleomycin (PM) were studied in E. coli K12 strains with special reference to the effects of repair or recombination deficiences and metabolic inhibitors. (1) Unlike excision-defective derivatives of E. coli B, uvrA, uvrB, and uvrC mutants of strain K12 showed no peculiarities compared with wild type in regard to cell survival. Likewise, mutant alleles at uvrD and polA loci had no effect. In contrast, rec mutants were more sensitive to PM-killing than were rec+ strains. (2) PM-induced strand breakage in DNA was observed in all strains tested including the above-mentioned mutants. There was no significant distinction between the uvr mutants and the wild type strain, indicating that the uvr-endonuclease was not responsible for the strand breaks. Involvement of endonuclease I was also ruled out. (3) At least some of the PM-induced breaks were repairable. (4) PM-induced lethality and strand breakage were totally dependent on energy supply. Inhibition of protein synthesis resulted in a partial and parallel suppression of the two effects. Our results suggest that the lethality is due to DNA strand breakage and the repair of such damage is postulated to be controlled by rec genes.
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1376
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Matsuda M, Nakayama H, Ito A, Kirigaya N, Kurata FK. Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ata. i. cardiovascular and thermoregulatory functions. UNDERSEA BIOMEDICAL RESEARCH 1975; 2:101-18. [PMID: 1237957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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1377
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Matsuda M, Nakayama H, Kurata FK, Claybaugh JR, Hong SK. Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ATA. II. Urinary water, electrolytes, ADH, and aldosterone. UNDERSEA BIOMEDICAL RESEARCH 1975; 2:119-31. [PMID: 1189117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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1378
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Tachiyashiki S, Nakayama H, Kuroda R, Sato S, Saito Y. Hexafluoroacetylacetonatothallium(I). ACTA ACUST UNITED AC 1975. [DOI: 10.1107/s0567740875005481] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1379
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Noguchi Y, Ohno J, Nakayama H, Kondo K, Takagi T. [Nephrotic syndrome: idiopathic amyloidosis]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1975; Spec No:774-5, 1130-3. [PMID: 1240366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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1380
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Nakayama H, Weser E. Pyrimidine biosynthetic enzymes in rat intestine after small bowel resection. Gastroenterology 1975; 68:480-7. [PMID: 164399] [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
After small bowel resection in the rat, mucosal hyperplasia and an increase in nucleic acid synthesis and cell proliferation occur in remaining small intestine. Male Sprague-Dawley rate underwent resection of 50 cm of proximal or distal intestine or sham operation. One month and 6 months after surgery, aspartate transcarbamylase, dihydroorotase, and uridine kinase were assayed in whole mucosa, and in some instances, in crypt mucosa ffrom the remaining intestinal segment. In control bowel, enzyme activity was significantly greater proximal compared with distal segments. One month after proximal or distal resection, mucosal enzyme activity per cm of gut was greater in the remnant bowel compared with controls. There was no such difference at 6 months. Specific enzyme activity of whole mucosa did not increase after resection because the assay was influenced by the disproportionately large contribution of villous protein. Specific enzyme activity (including thymidine kinase) of isolated crypt mucosa was significantly increased 1 month after distal resection. In addition, [3H]thymidine uptake into DNA of crypt mucosa from proximal remnants was also significantly increased. These results indicate that after small bowel resection, the enzymes of pryimidine biosynthesis increase in remaining bowel and parallel the accelerated rate of cell proliferation.
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1381
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Suzuki H, Nakagawa K, Nakayama H, Kunida H, Hata S. [Drug-drug interaction and drug-induced interference with clinical laboratory test procedures--endocrine function tests and drug interferences (author's transl)]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1975; 23:119-25. [PMID: 1168745] [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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1382
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Nakayama H, Hanawalt P. Sedimentation analysis of deoxyribonucleic acid from thymine-starved Escherichia coli. J Bacteriol 1975; 121:537-47. [PMID: 1090581 PMCID: PMC245964 DOI: 10.1128/jb.121.2.537-547.1975] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
During thymine starvation, strand breaks accumulate in the chromosomal deoxyribonucleic acid (DNA) of Escherichia coli. This effect occurs to a varying extent in different strains and is particularly enhanced in strains deficient in DNA polymerase I. The inhibition of ribonucleic acid or protein synthesis suppresses the accumulation of strand breaks. In a polA strain, rifampin is more effective than chloramphenicol or puromycin in suppressing strand break accumulation. To a certain extent the pehenomenon othymineless death correlates with the appearance of strand breaks. Although the killing can not be explained by the bulk of strand breaks, it is possible that some of them represent lethal events. On the basis of our observations we proposed the following model. (i) Transcription may be accompanied by single-strand breaks in DNA. (ii) DNA polymerase I is involved in the efficient repair of these breaks. (iii) Thymine deprivation results in the accumulation of unrepaired breaks. (iv) Polymerase I-mediated repair is less affected by thymine deprivation than are the alternative pathways because it closes the breaks with short patches, requiring less thymine.
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1383
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Hanawalt P, Grivell A, Nakayama H. DNA turnover and strand breaks in Escherichia coli. BASIC LIFE SCIENCES 1975; 5A:47-50. [PMID: 1103853 DOI: 10.1007/978-1-4684-2895-7_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The extent of DNA turnover has been measured in a dnaB mutant of Escherichia coli, temperature sensitive for semiconservative DNA replication. At the nonpermissive temperature about 0.02% of the deoxynucleotides in DNA are exchanged per generation period. This turnover rate is markedly depressed in the presence of rifampicin. During thymine starvation strand breaks accumulate in the DNA of E. coli strains that are susceptible to thymineless death. Rifampicin suppresses the appearance of these breaks, consistent with our hypothesis that transcription may be accompanied by repairable single-strand breaks in DNA. DNA turnover is enhanced severalfold in strands containing 5-bromodeoxy-uridine in place of thymidine, possible because the analog (or the deoxyuridine, following debromination) is sometimes recognized and excised.
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1384
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Arimitsu T, Ishimitsu H, Nakayama H, Suzuki K, Matsumoto H. [RI diagnosis of meningioma of the posterior cranial fossa]. RINSHO HOSHASEN. CLINICAL RADIOGRAPHY 1975; 20:93-4. [PMID: 1169429] [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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1385
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Ishimitsu H, Arimitsu T, Nakayama H, Suzuki K, Matsumoto K. [Keyponts in RI scintigraphy of brain tumors - the effects of steroid preperations]. RINSHO HOSHASEN. CLINICAL RADIOGRAPHY 1975; 20:91-2. [PMID: 1169427] [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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1386
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Nakayama H. Phleomycin-induced DNA lesions and their repair in Escherichia coli K12. BASIC LIFE SCIENCES 1975; 5B:483-85. [PMID: 1103864 DOI: 10.1007/978-1-4684-2898-8_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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1387
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Nakayama H. [Legislation concerning confinement of mental patients and pressure exerted on psychiatric care]. KANGOGAKU ZASSHI 1974; 38:1161-5. [PMID: 4217849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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1388
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Nakayama H, Miya T, Watanabe K, Yamasato M, Okabe M. [Movements of the bile ducts of Stenella caeruleoalba (II)]. NIHON HEIKATSUKIN GAKKAI ZASSHI 1974; 10:206-8. [PMID: 4477317] [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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1389
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Abstract
The incorporation of thymidine methyl-3H (3H-TdR) into deoxyribonucleic acid (DNA) was measured in the intestine of diabetic rats. Animals were allowed food ad libitum or were pair-fed. Diabetes was induced with streptozotocin. In the pair-feeding experiment, there was a decrease in 3H-TdR incorporation into DNA in the intestine of diabetic rats, and the mucosal weight did not differ significantly from controls. However, when diabetic rats were allowed food ad libitum, there was a significant increase in DNA synthesis in the intestine. The mucosal weight of the diabetic animal was 62 per cent greater in the jejunum and 31 per cent greater in the ileum than in the control segments. It is concluded that a decrease in proliferative cellular activity occurs in the intestinal mucosa of diabetic rats but hyperphagia leads to a compensatory increase in DNA synthesis in these animals.
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1390
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Suzuki H, Nakagawa K, Nakayama H, Kunita H, Hata S. [The effect of drugs on the endocrine function tests (author's transl)]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1974; 22:326-51. [PMID: 4139294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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1391
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Nakayama H, Hayashi R. Inhibition of thiamine pyrophosphate utilization by thiamine or its monophosphate in Escherichia coli. J Bacteriol 1974; 118:32-40. [PMID: 4595201 PMCID: PMC246636 DOI: 10.1128/jb.118.1.32-40.1974] [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: 01/11/2023] Open
Abstract
The growth of a thiamine pyrophosphate auxotroph of Escherichi coli was inhibited by either thiamine or thiamine monophosphate, and the growth of a thiamine monophosphate auxotroph was inhibited by thiamine. The thiamine pyrophosphate-dependent oxidation of pyruvate was inhibited by thiamine with whole cells of the thiamine pyrophosphate auxotroph but not with cell extracts prepared from the same organism. In addition, the thiamine pyrophosphate uptake of the thiamine pyrophosphate auxotroph was inhibited by either thiamine or thiamine monophosphate. Although the thiamine pyrophosphate uptake of a revertant, selected for prototrophy from the thiamine monophosphate auxotroph, was inhibited by thiamine to an extent comparable to that observed with the thiamine monophosphate auxotroph, its growth was no longer inhibited by thiamine. A possible mechanism for the inhibition by thiamine and thiamine monophosphate in the utilization of thiamine pyrophosphate is discussed.
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1392
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Winborn WB, Seelig LL, Nakayama H, Weser E. Hyperplasia of the gastric glands after small bowel resection in the rat. Gastroenterology 1974; 66:384-95. [PMID: 4813504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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1393
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Nakayama H, Suzuki K, Ishimitsu H, Nishimoto A. [Diagnosis of brain tumor by encephaloscintigram: with special reference to differential diagnosis of glioblastoma and meningioma]. RINSHO HOSHASEN. CLINICAL RADIOGRAPHY 1974; 19:240. [PMID: 4367571] [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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1394
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Nakayama H. Factors contributing to future rise of blood pressure. THE BULLETIN OF TOKYO MEDICAL AND DENTAL UNIVERSITY 1973; 20:261-74. [PMID: 4521623] [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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1395
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Nakayama H, Kanaoka Y. A photoaffinity labeling of the active site of alpha-chymotrypsin with TPDK. FEBS Lett 1973; 37:200-2. [PMID: 4763321 DOI: 10.1016/0014-5793(73)80458-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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1396
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Matsumoto A, Nakayama H, Ishimitsu H, Suzuki K, Nishimoto A. [Application of a scintillation camera for differential diagnosis of meningioma and glioblastoma]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1973; 10:397-404. [PMID: 4358050] [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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1397
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Nakagawa S, Nakayama H, Sasaki T, Yoshino K, Yu YY. A simple method for the determination of serum free insulin levels in insulin-treated patients. Diabetes 1973; 22:590-600. [PMID: 4579520 DOI: 10.2337/diab.22.8.590] [Citation(s) in RCA: 254] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A method for the determination of free, active insulin in the sera of insulin-treated diabetics is described. This involved radioimmunoassay after extraction of free insulin with polyethylene glycol. Recovery tests with cold insulin showed 73 per cent recovery of free insulin and no recovery of bound insulin.
The fasting free insulin levels were slightly lower in the patients than in normal persons; exceptions were some patients with complications expected to cause insulin resistance at the peripheral tissue level. Free insulin levels did not correlate with total insulin levels, antibody titers, insulin requirements or conditions of insulin treatment.
A very slight increase of insulin was observed after glucose loading in insulin-treated patients, but a marked increase of the free insulin level followed by an exaggerated increase in the total insulin level was observed in a patient with the insulin autoimmune syndrome.
The diurnal changes of the free insulin suggested the dynamic states of this fraction and its usefulness for determining control of diabetes with insulin.
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1398
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Negoro Y, Nakayama H, Imanichi Z, Yamamoto T. [The influence of antimacrophage serum on the corneal xenograft reaction (author's transl)]. NIPPON GANKA GAKKAI ZASSHI 1973; 77:847-52. [PMID: 4594061] [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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1399
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Nakagawa M, Nakayama H. [Diabetic nephropathy]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1973; 31:2275-80. [PMID: 4795327] [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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1400
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Tanaka S, Shimizu H, Nakayama H, Takenoshita M, Ichishita H. [Metabolism of 7-chloro-1,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-3-carboxylic acid, monopotassium salt, monopotassium hydroxide (mendon)]. Nihon Yakurigaku Zasshi 1973; 69:419-28. [PMID: 4739063 DOI: 10.1254/fpj.69.419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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