Wyniki wyszukiwania - AGRO

1

Effect of Ca2 on the activity of mitochondrial NADP-specific isocitrate dehydrogenase from rabbit adrenals

100%

Strumilo E.

Acta Biochimica Polonica

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1995

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tom 42

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nr 3

Mitochondrial NADP-specific isocitrate dehydrogenase (ICDH) partially purified from rabbit adrenals is sensitive to low concentrations of Ca2+. In the absence of Ca2+ (addition of 1 mM EGTA) the Km of ICDH for DL-isocitrate was 143 jaM, and in the presence of about 10 jaM Ca2+ (EGTA-Ca2+ buffer) it was decreased to 55 ¿iM. The JCm value of ICDH for NADP was similar in the absence (4.4 jxM) and in the presence (5.0 jiM) of Ca2+. The Km of mitochondrial NADP-ICDH for DL-isocitrate was higher than that of cytoplasmic NADP-ICDH from the same source.

2

The differential transactivation activity of orphan nuclear receptors of the Nur77 family induced by calcium or cyclic AMP mediated signalling pathways

100%

Plawiak D., Matuszyk J., Ziolo E., Strzadala L.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

3

Protective effects of nicotine against glutamate-induced neurotoxicity in PC12 cells

88%

Sun X., Liu Y., Hu G., Wang H.

Cellular and Molecular Biology Letters

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2004

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tom 09

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nr 3

This study aimed to assess whether nicotine prevented glutamate neurotoxicity in PC12 cells, and to identify the molecular mechanisms of any effects. The results showed that glutamate neurotoxicity in PC12 cells could be prevented by treatment with nicotine at concentrations of 10 nmol.l-1-1 mmol.l-1. This effect was in turn found to be inhibited by the application of the nicotinic acetylcholine receptor (nAChR) antagonist mecamylamine. Nicotine significantly decreased the basal level of intracellular free Ca2+ and enhanced the buffering action on Ca2+ overload induced by high concentrations of glutamate (5 mmol.l-1). In addition, nicotine treatment up-regulated the mRNA and protein expression of apoptosis-related factors including bcl-2 mRNA and protein, but down-regulated the expression of bax mRNA and protein. It is concluded that the protective effects of nicotine against the neurotoxicity induced by glutamate are mediated by nAChRs, due to the increased buffering action on Ca2+ and the modulation of apoptotic processes.

4

The influence of cAMP and calcium on the modulation of the MP and ion conductivity in developing embryos

88%

Chaban V., Goida E.

Biophysics of Membrane Transport

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1994

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tom 12

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nr 2

5

The pH-dependent effect of mitochondria on Ca2plus influx into Jurkat cells

88%

Zablocki K., Makowska A., Szczepanowska J., Duszynski J.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

6

Hypoxia-induced subcellular migration of calcium in the carotid body: an ultrastructural assessment by ion-capture cytochemistry

88%

Pokorski M., Walski M.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

7

Calcium metabolism in maturing anther of Allium cepa L.

88%

Golaszewska B., Bednarska E.

Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement

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1997

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tom 39

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nr 1

8

The role of calcium in signal transduction processes in Sertoli cells

76%

Gorczynska-Fjalling E.

Reproductive Biology

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2004

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tom 04

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nr 3

9

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The role of intracellular calcium in the ischemic myocardial damage

76%

Lewartowski B., Pytkowski B., Janczewski A. M.

Acta Physiologica Polonica

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1987

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tom 38

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nr 6

10

Dynamics of sodium retention in preascitic cirrhotic rats assessed through parathyroid hormone injection

76%

Sansoe G., Mastrocola R., Aragno M., Parola M.

Journal of Physiology and Pharmacology

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2014

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tom 65

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nr 5

11

Bronchodilator, vasodilator and spasmolytic activities of Cymbopogon martinii

76%

Janbaz K. H., Qayyum A., Saqib F., Imran I., Zia-Ul-Haq M., De Feo V.

Journal of Physiology and Pharmacology

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2014

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tom 65

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nr 6

12

Effect of oral aspartame administration on the excretion and distribution of calcium in rat tissue

76%

Kovatsi L., Tsouggas M.

Journal of Elementology

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2005

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tom 10

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nr 4 Suppl.1

50-51

13

The role of sugar factory lime on compound fertilizer properties

76%

Paleckiene R., Sviklas A. M., Slinksiene R.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 3

423-426

The manufacturing of compound fertilizers enriched with calcium by solid component granulation using by-product of beet sugar industry – sugar factory lime (SFL) was investigated on laboratory scale. Sugar factory lime was examined by chemical, differential scanning calorimetry – thermogravimetry (DSC -TG), infrared spectroscopy (IR ) and X-ray diffraction (XRD) analysis. The dependence of particle size and crushing strength on SFL content, fertilizers component ratio and recycling part of fertilizers in granulation mixture was obtained. The main physicochemical properties of fertilizers such as particle size distribution, moisture content, pH, and particle crushing strength are determined. The results of investigations show, that waste from the beet sugar industry may be used in production of compound fertilizers as a calcium source. The results obtained are important for environmental protection and plant fertilization.

14

Calcium shifts accompanying rest-dependent phenomena in atrial muscle of Guinea-pig heart

76%

Prokopczuk A.

Acta Physiologica Polonica

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1987

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tom 38

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nr 6

15

Wapn - bardzo wazny skladnik pokarmowy roslin

76%

Szutowska G.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2004

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nr 06

19-20

16

The isoform- and location-dependence of the functioning of the plasma membrane calcium pump

76%

Zylinska L., Kawecka I., Lachowicz L., Szemraj J.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr 4

The plasma membrane is a specialised multi-component structure with inter- and intracellular signalling functions. Ca2+ plays a crucial role in cellular physiology, and an ATP-driven plasma membrane calcium pump (PMCA) plays the greatest role in the maintenance of a low free Ca2+ concentration in the cytoplasm. The enzyme is coded by four separate genes (PMCA 1-4), and, due to alternative splicing, more than 20 variants can exist. PMCA 1 and 4 isoforms are present in almost all tissues, whereas PMCA 2 and 3 are found in more specialised cell types. The variants differ primarily in their regulatory regions, thus the modulation of calcium pump activity strongly depends on the isoform and the membrane composition. The unique function of PMCA isoforms was confirmed using the practical experimental models - a rat pheochromocytoma cell line, a human neuroblastoma cell line, or, more recently, knockout mice. In addition, based on the finding that PMCA could interact with several specific signaling proteins, it was concluded that its location in defined sites of the cell membrane could be a prerequisite for efficient intercellular communication.

17

Quantitative distribution of total calcium in granulometric fractions of certain soils of Poland

76%

Brogowski Z., Uziak S., Komornicki T.

Polish Journal of Soil Science

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2010

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tom 43

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nr 1

The content of the total calcium was studied in granulometric fractions of the following diameters: <0.002, 0.005-0.002, 0.02-0.005, 0.05-0.02, 0.1-0.05 and 1.0-0.1 mm. It was observed that the amount of Ca accumulated in particular fractions is not correlated with their content in soils. The ratios of Ca content in a given fraction to the content of the granulometric fraction (Ca/Fr) keep gradually decreasing from a clay fraction <0.002 to a sandy fraction of 0.1-1 mm. No calcium migration from the surface of the studied soils down the profile was observed in particular fractions, except for the clay fraction <0.002 mm in lessive soil profiles.

18

Use of thiacalix[4]arene C-1193 for a directed influence on the functional activity of mitochondria and simulation of this process using a Petri nets

76%

Danylovych H., Danylovych Y., Chunikhin A., Cherenok S., Kalchenko V., Kosterin S.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2024

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tom 105

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nr 1

19

Annexin VI, a novel ATP-dependent protein. Alterations of phospholipid binding properties of annexin VI by nucleotides

75%

Danieluk M., Sikorski A. F., Pikula S., Bandorowicz-Pikula J.

Cellular and Molecular Biology Letters

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1999

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tom 04

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nr 2

20

Parathyroid hormone level in blood of cows with different forms of clinical hypocalcaemia

75%

Kurek L., Stec A.

Bulletin of the Veterinary Institute in Puławy

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2005

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tom 49

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nr 1

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