Výsledky vyhledávání - "H. G. Westra"

The effect of temperature and pH on the co-operative behavior of Mg2+ -stimulated acto-myosin-ATPase and the inhibition by IMP

Autor: H G Westra, I Jetten, J.A. Berden

Publikováno v: Archives of physiology and biochemistry. 111(5)

We have previously reported our finding that IMP inhibits the Mg2+ -stimulated acto-myosin-ATPase activity of isolated actin and myosin. These experiments were undertaken at 35 degrees C and pH 7.0. It was also shown that the binding of actin to myos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd2c62a280abb642f340b1b1b3eafda5
https://pubmed.ncbi.nlm.nih.gov/16026036

Zobrazit plný text záznamu

A method for the determination of volatile ammonia in air, using a nitrogen-cooled trap and fluorometric detection

Autor: J. van Doorn, R.G. Tigchelaar, J.A. Berden, H. G. Westra

Publikováno v: Analytical Biochemistry, 296, 225-231. Academic Press Inc.
Westra, H G, Tigchelaar, R G & Berden, J A 2001, ' A method for the determination of volatile ammonia in air, using a nitrogen-cooled trap and fluorometric detection ', Analytical Biochemistry, vol. 296, pp. 225-231 . https://doi.org/10.1006/abio.2001.5229

A quick, cheap, and accurate method for the determination of ammonia in air is described. Ammonia and water vapor are trapped simultaneously in a gas sampling tube cooled in liquid nitrogen. Subsequently ammonia is derivatized with o-phthaldialdehyde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bae171b6eb1c1cdf902888f8c67fdd35
https://pubmed.ncbi.nlm.nih.gov/11554718

Zobrazit plný text záznamu

A Model for Regulation of the Mg 2+-Stimulated Acto-Myosin-ATPase Activity: inhibition of ten Formation of Actin-Myosin Complex and the Mg 2+-Stimulated Acto-Myosin-ATPase Activity by IMP and AMP

Autor: W.J. Pasman, I. Pool, J. van Doorn, J.A. Berden, H. G. Westra

Publikováno v: Archives of Physiology and Biochemistry, 109, 316-322. Informa Healthcare
Westra, H G, Berden, J A, Pasman, W J, Pool, I & van Doorn, J E 2001, ' A Model for Regulation of the Mg 2+-Stimulated Acto-Myosin-ATPase Activity: inhibition of ten Formation of Actin-Myosin Complex and the Mg 2+-Stimulated Acto-Myosin-ATPase Activity by IMP and AMP ', Archives of Physiology and Biochemistry, vol. 109, pp. 316-322 . https://doi.org/10.1076/apab.109.4.316.4239

Previously, we showed that the decrease in force output during continuous isometric contractions in rat skeletal muscle was related to an increase in the concentration of IMP. In this paper we report on additional experiments in which the effect of I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37aa352ce1673d6a80839906cf2f19f2
https://research.vu.nl/en/publications/ef7e9541-0a02-4b86-bb4d-96b9d88a0c7c

Zobrazit plný text záznamu

Anaerobic chemical changes and mechanical output during isometric tetani of rat skeletal muscle in situ

Autor: H. G. Westra, J. van Doorn, A. de Haan, E.J. De Haan

Publikováno v: Pflügers Archiv - European Journal of Physiology. 412:121-127

The time course was examined of the energy-rich phosphate usage and exerted isometric tetanic force in electrically stimulated rat quadriceps muscle. The maximal rate of energy-rich phosphate usage was calculated from the changes in the intramuscular

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b35014e1783e3985a29108ee8dfba79a
https://doi.org/10.1007/bf00583740

Zobrazit plný text záznamu

IMP production and energy metabolism during exercise in rats in relation to age

Autor: A. de Haan, J. van Doorn, H. G. Westra, E.J. De Haan

Publikováno v: Biochemical Journal. 239:751-755

IMP production in and force exerted by rat quadriceps muscle in situ during various types of exercise were examined in relation to age. During continuous isometric exercise with constant stimulation time, the amount of IMP was linearly and inversely

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e175e222becb02f261293e6a26de50be
https://doi.org/10.1042/bj2390751

Zobrazit plný text záznamu

Effects of Potassium + Magnesium Aspartate on Muscle Metabolism and Force Development during Short Intensive Static Exercise

Autor: J. van Doorn, A. de Haan, H. G. Westra

Publikováno v: International Journal of Sports Medicine. :44-49

Improvement of muscle performance by 20%-50% in man at a submaximal work load after administration of potassium and magnesium salts of aspartic acid (K + Mg Asp) has been reported in the literature. Administration of K + Mg Asp has been reported to a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7eec289253ad56c462cb5f3400a1aa06
https://doi.org/10.1055/s-2008-1025812

Zobrazit plný text záznamu

The effect of intensive interval training on the anaerobic power of the rat quadriceps muscle

Autor: J. van Doorn, H. G. Westra, A. de Haan, E.J. De Haan

Publikováno v: Journal of Sports Sciences. 3:139-150

The effect of intensive interval training on the maximal anaerobic power of the rat quadriceps muscle was investigated. The anaerobic energy production was estimated from the changes in the concentrations of phosphocreatine, adenine nucleotides, inos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d8c259a1244d257f96494c60c7c4634
https://doi.org/10.1080/02640418508729743

Zobrazit plný text záznamu

Muscle economy of isometric contractions as a function of stimulation time and relative muscle length

Autor: Peter A. Huijing, H. G. Westra, J. de Jong, J. van Doorn, R. D. Woittiez, A. de Haan

Publikováno v: Pflügers Archiv. 407:445-450

For rat medial gastrocnemius muscle economy (i.e. the ratio of time integral of force and total energy-rich phosphate consumption) was calculated. Muscles in situ at 35 degrees C were stimulated to perform either one continuous or several repetitive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2950e59ace63a90562d3f28b2569f477
https://doi.org/10.1007/bf00652632

Zobrazit plný text záznamu

Acid-base balance and subjective feelings of fatigue during physical exercise

Autor: H. G. Westra, A. J. Poulus, H. J. Docter

Publikováno v: European Journal of Applied Physiology and Occupational Physiology. 33:207-213

Six trained male subjects performed exercise on a bicycle ergometer. The external load was increased every minute by 10 watt until exhaustion. The subjects quantified their subjective feeling of fatigue by means of a rating scale.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ade1c39fe59d96c2e8ac0099b29fca48
https://doi.org/10.1007/bf00421148

Zobrazit plný text záznamu

Short-term and Persistent Metabolic Changes as Induced by Exercise

Autor: A. de Haan, H. R. van Doorn, E.J. De Haan, H. G. Westra

Metabolic events were studied in electrically stimulated in vivo quadriceps muscle of young male rats during maximal contractions under anaerobic conditions and during aerobic recovery. Up to about 6 seconds there was a rapid fall in creatine phospha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84f15b2547d824ed5e56071292b5a1ec
https://doi.org/10.1016/b978-0-08-027986-2.50029-3

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání