Publications

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64 Publications visible to you, out of a total of 64
[Microenvironment of enzymes as 1 of the factors determining enzyme stability. Stabilization of soluble and immobilized horseradish peroxidase]

Abstract

Not specified

Authors: I. V. Berezin, B. M. Kershengol'ts, N. N. Ugarova

Date Published: 11th Aug 1975

Publication Type: Not specified

[A case of allergic granulomatous angitis (author's transl)]

Abstract

Not specified

Authors: Y Yokoyama, T Kono, M Aoki

Date Published: 10th Jun 1975

Publication Type: Not specified

Formate assay in body fluids: application in methanol poisoning

Abstract

Not specified

Authors: A B Makar, K E McMartin, M Palese, T R Tephly

Date Published: 1st Jun 1975

Publication Type: Not specified

{Stable theories}

Abstract

Not specified

Author: Saharon Shelah

Date Published: 1969

Publication Type: Not specified

Minimal manual publication

Abstract

Not specified

Editor:

Date Published: No date defined

Publication Type: Not specified

[Inhibition effect of soybean isoflavones on the oxidative modification of low-density lipoprotein].

Abstract (Expand)

In order to investigate the effect of soybean isoflavones(SI) on the oxidative modification to low-density lipoprotein(LDL) and to differentiate the effect of SI and alpha-tocopherol, in vitro and in … vivo test were conducted. An in vitro model of LDL oxidative modification induced by copper-ion was established by monitoring the production of thiobarbituric acid-reactive substances (TBARS) and conjugated dienes after SI or alpha-tocopherol was added. The in vivo test was conducted by feeding rats with a high fat diet supplemented with SI and measured the sensitivity of LDL oxidative modification mediated by Cu2+ in vitro. The results revealed that when SI was added into the in vitro LDL oxidation system, the content of TBARS or conjugated dienes in the system was much reduced with a dose-effect relationship, whether lipid oxidation being initiated or not by copper-ion at 37 degrees C. In comparison with SI, only a significant inhibiting effect on lipid oxidation while alpha-tocopherol was added before the initiation of oxidation. High fat diet induced a rising of LDL sensitivity of oxidative stress, and adding SI to the high fat diet could counteract the sensitivity of LDL oxidative modification significantly. It is concluded that SI is a valuable natural antioxidant different from alpha-tocopherol in inhibiting LDL oxidative modification both in vitro and inv vivo.

Authors: X. Yan, J. Gu, C. Sun, D. Liu

Date Published: No date defined

Publication Type: Not specified

Allosteric regulation of phosphofructokinase controls the emergence of glycolytic oscillations in isolated yeast cells.

Abstract (Expand)

UNLABELLED: Oscillations are widely distributed in nature and synchronization of oscillators has been described at the cellular level (e.g. heart cells) and at the population level (e.g. fireflies). … Yeast glycolysis is the best known oscillatory system, although it has been studied almost exclusively at the population level (i.e. limited to observations of average behaviour in synchronized cultures). We studied individual yeast cells that were positioned with optical tweezers in a microfluidic chamber to determine the precise conditions for autonomous glycolytic oscillations. Hopf bifurcation points were determined experimentally in individual cells as a function of glucose and cyanide concentrations. The experiments were analyzed in a detailed mathematical model and could be interpreted in terms of an oscillatory manifold in a three-dimensional state-space; crossing the boundaries of the manifold coincides with the onset of oscillations and positioning along the longitudinal axis of the volume sets the period. The oscillatory manifold could be approximated by allosteric control values of phosphofructokinase for ATP and AMP. DATABASE: The mathematical models described here have been submitted to the JWS Online Cellular Systems Modelling Database and can be accessed at http://jjj.mib.ac.uk/webMathematica/UItester.jsp?modelName=gustavsson5. [Database section added 14 May 2014 after original online publication].

Authors: A. K. Gustavsson, D. D. van Niekerk, C. B. Adiels, B. Kooi, M. Goksor, J. L. Snoep

Date Published: No date defined

Publication Type: Not specified

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