1676
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Ng WG, Kline F, Lin J, Koch R, Donnell GN. Biochemical studies of a human low-activity galactose-1-phosphate uridyl transferase variant. J Inherit Metab Dis 1978; 1:145-51. [PMID: 117249 DOI: 10.1007/bf01805583] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A low activity galactose-1-phosphate uridyl transferase (transferase) variant in a newborn infant has been demonstrated by biochemical studies in erythrocytes and cultured skin fibroblasts. The newborn infant was a galactosaemic suspect identified in a neonatal metabolic screening programme. On breast feeding, he did well without clinical symptoms of galactosaemia during the first 15 days of life. However, substantial amounts of erythrocyte galactose-1-phosphate and urinary galactitol corresponding to the levels in untreated galactosaemic patients, along with mild amino aciduria, were found. The transferase activity, as measured by a sensitive micro kinetic radioisotopic method, was about 7--10% of the normal. On starch gel electrophoresis, the enzyme from the haemolysate had similar mobility as the normal in Tris--glycine buffer, pH 8.8 and phosphate buffer, pH 7.0, but had a slower mobility than that of the normal in the histidine buffer, pH 7.8. The mobility difference was much clearer in a semipurified enzyme preparation. The transferase enzyme in the haemolysate appeared to be more heat labile.
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1677
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1678
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Lin J, Rivett DE, Wilshire JFK. The preparation and photochemical properties of some 1,3-Diphenyl-2-pyrazolines containing a heteroaromatic substituent. Aust J Chem 1977. [DOI: 10.1071/ch9770629] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Several 1,3-diphenyl- and
1,3,5-triphenyl-2-pyrazolines containing a heteroaromatic substituent (viz.
imidazol-1-yl, pyrazol-1-yl and 1,2,4- triazol-1-yl) have been synthesized.
When compared with their unsubstituted analogues, these compounds (a) absorbed
more intensely at a longer wavelength, (b) exhibited greater fluorescence in a
polar solvent (methanol) and (c) possessed similar stability to light. ��� Large-scale irradiations of two
1,3,5-triphenyl-2-pyrazolines (viz. unsubstituted and that containing the
1,2,4-triazol-1-yl substituent) in methanolic solution revealed that, although
dehydrogenation of the 2-pyrazoline ring was the major photochemical reaction,
significant oxidation to the corresponding chalcone also occurred. In addition,
phenol was detected among the irradiation products. ��� Several sulphonated analogues of the
abovementioned pyrazolines were prepared. When applied to wool, these compounds
exhibited excellent fluorescent whitening properties.
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1679
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Gale DJ, Lin J, Wilshire JFK. The amidomethylation and bromination of Fischer's base.The preparation of some new polymethine dyes. Aust J Chem 1977. [DOI: 10.1071/ch9770689] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The amidomethylation of
Fischer's base (1,3,3-trimethyl-2- methyleneindoline)
with N-hydroxy-methylphthalimide gives, as the main product, the
5-phthalimidomethyl derivative (4). This compound has been converted into its
parent amine (5) from which a N-chloroacetyl derivative (6) was readily
obtained. Fischer's base reacted with one equivalent of dibromoisocyanuric acid
to give the 5-bromo derivative (7) and with two equivalents to give the
5,6-dibromo derivative (8). ��� All five substituted Fischer's bases have
been used to prepare representative polymethine dyes, the ultraviolet spectral
and lightfastness (on wool) properties of which are described. Dyes containing
one bromine atom impart particularly brilliant shades to wool. A dye containing
the N-chloro-acetamidomethyl substituent proved to be fibre-reactive.
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1680
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Epstein F, Naidich T, Kricheff I, Chase N, Lin J, Ransohoff J. Role of computerized axial tomography in diagnosis, treatment and follow-up of hydrocephalus. Preliminary communication. CHILD'S BRAIN 1977; 3:91-100. [PMID: 862467 DOI: 10.1159/000119655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The authors have summarized their experience in the application of computerized axial tomography to the overall management of hydrocephalus.
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1681
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Lin J, Uwate WJ, Stallman V. Ultrastructural localization of acid phosphatase in the pollen tube of Prunus avium L. (sweet cherry). PLANTA 1977; 135:183-190. [PMID: 24420022 DOI: 10.1007/bf00387169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/1977] [Accepted: 03/20/1977] [Indexed: 06/03/2023]
Abstract
The pollen tube of Prunus avium (cherry) consists of a growth zone of vesicles at the tip and an assemblage of organelles typical of an actively metabolizing cell. Electron opaque globules are closely associated with the plasma membrane and fibrillar cell wall layer at the tip. Acid phosphatase (EC 3.1.3.2) activity is localized in the membranes of 120 nm vesicles and ER system, the lumen of 50 nm vesicles, the plasma membrane and the tube nucleus.
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1682
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1683
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Sutton JR, Jones NL, Lin J, Ward G, Toews CJ. EFFECT OF ACIDOSIS ON MUSCLE GLYCOLYSIS. Med Sci Sports Exerc 1976. [DOI: 10.1249/00005768-197621000-00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1684
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Gale DJ, Lin J, Wilshire JFK. The cyclization of some methylphenylhydrazones to indoles. The preparation of some polymethine dyes related to Astrazon Orange R. Aust J Chem 1976. [DOI: 10.1071/ch9762747] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The cyclization of several
substituted acetophenone methylphenylhydrazones to indoles has been achieved by
means of polyphosphoric acid as the reagent. The resultant N-methyl-2- phenylindoles and their 3-formyl analogues were used for
the preparation of several new polymethine basic dyes related to Astrazon
Orange R, the ultraviolet spectral and lightfastness (on wool) properties of which
are described. The cyclization of some cycloalkanone methylphenylhydrazones has
been achieved in acetic acid.
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1685
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Matsumoto H, Miyazaki T, Lin J, Hotta S. The serum protein groups of Indonesians from Java. JINRUI IDENGAKU ZASSHI. THE JAPANESE JOURNAL OF HUMAN GENETICS 1975; 20:201-5. [PMID: 1241394] [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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1686
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Flamm ES, Kim J, Lin J, Ransohoff J. Phosphodiesterase inhibitors and cerebral vasospasm. ARCHIVES OF NEUROLOGY 1975; 32:569-71. [PMID: 168844 DOI: 10.1001/archneur.1975.00490500089013] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Experimental cerebral vasospasm was studied in cat and monkey models. In the cat, the basilar artery was exposed by a transclival approach and spasm induced by the application of blood to the vessel. In the monkey, spasm was produced by injecting blood into the subarachnoid space. Vessel size was determined in the cat by direct observation and, in the monkey, by cerebral angiography. Several agents known to alter the synthsis and degradation of cyclic adenosine monophosphate (AMP) were used to modity the vasospasm produced. Isoproterenol (Norisodrine) and aminophyline were effective in reversing cerebral vasospasm when applied topically and when administered parenterally. It is suggested that manipulation of the cyclic AMP pathways may be an effective method of controlling cerebral vasospasm.
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1687
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Abstract
Blood induced acute and chronic cerebral vasospasm were studied in Rhesus monkeys by serial angiography. Two vasoactive agents were evaluated. In acute spasm, phosphodiesterase inhibition by Aminophylline consistently reversed the vasospasm. This agent alone was ineffective in chronic spasm and required the addition of Isoproterenol to produce reversal of vasospasm. It is proposed that cerebral vasospasm may be associated with a decrease of intracellular c-AMP in vascular smooth muscle which can be reversed by manipulation of the enzyme pathway involved. It is further proposed that c-AMP is a basic common pathway through which adrenergic vascular reactivities are mediated.
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1688
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Lin J, Rost TL, Elmore C. Light microscopic staining and histochemical applications for plant meristems embedded in Spurr's medium. MIKROSKOPIE 1974; 30:281-6. [PMID: 4140482] [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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1689
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1690
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Lin J. Studies on percutaneous transhepatic cholangiography: A safe and effective technique by lateral approach. THE KUMAMOTO MEDICAL JOURNAL 1974; 27:27-40. [PMID: 4437130] [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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1691
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1692
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1693
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1694
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Hartmann HA, Lin J, Shively MC. RNA of nerve cell bodies and axons after beta,beta-iminodipropionitrile. Acta Neuropathol 1968; 11:275-81. [PMID: 5715375 DOI: 10.1007/bf00686724] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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1695
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1696
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Lin J, Light J. Phase‐Space Theory of Chemical Kinetics. III. Reactions with Activation Energy. J Chem Phys 1966. [DOI: 10.1063/1.1727975] [Citation(s) in RCA: 80] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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1697
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Light JC, Lin J. Phase‐Space Theory of Chemical Kinetics. II. Ion—Molecule Reactions. J Chem Phys 1965. [DOI: 10.1063/1.1697295] [Citation(s) in RCA: 124] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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1698
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Abstract
The temperature coefficient of e.m.f. of a cell consisting of a saturated calomel electrode and a redox electrode of K4Fe(CN)6 and K3Fe(CN)6 has been determined by e.m.f. measurements at a series of equimolal concentrations of the above salts and at temperatures of 20, 25, 30, 35 °C. The results for this calomel–redox cell are expressed by the equation ECR0 = 0.1200 − 0.00214(t − 25), or for the redox electrode against a hydrogen gas electrode, EHR0 = 0.3644 − 0.00280(t − 25), with E in V and t in °C. Analogous results are available in the literature for other such pairs of complex ions; an examination of these data leads to the hypothesis that the following trichelated pairs: Fe dip32+/3+, Fe phen32+/3+, Ru dip32+/3+, are respectively nearly isentropic.
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1699
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Breck WG, Lin J. Thermal diffusion studies with redox electrodes. Part 2.—Ferro-ferricyanide couple. ACTA ACUST UNITED AC 1965. [DOI: 10.1039/tf9656101511] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1700
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Breck WG, Lin J. Thermal diffusion studies with redox electrodes. Part 1.—Theoretical relations. ACTA ACUST UNITED AC 1965. [DOI: 10.1039/tf9656100744] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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