Wyniki wyszukiwania

1

Placenta as a protecting barrier - some properties of glutathione-S-transferase

100%

Barszczewska I., Baranczyk-Kuzma A.

Acta Biochimica Polonica

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1992

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tom 39

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nr 1

2

Chemical detoxification of carcinogenic heterocyclic aromatic amines by isothiocyanates

75%

Bartoszek A., Smiechowska A., Przychodzen W., Piekarska A., Namiesnik J.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Textile azo dye decolorization and detoxification using bacteria isolated from textile effluents

75%

Karnwal A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2019

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tom 100

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nr 4

4

Glutathione: its role in the detoxication of reactive oxygen and environmental chemicals

75%

Parke D. V., Piotrowski J. K.

Acta Poloniae Toxicologica

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1996

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tom 04

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nr 1

5

The effect of exo- and endogenous compounds on the activity of glutathione-S-transferase from monkey brain

75%

Baranczyk-Kuzma A., Barszczewska I., Audus K. L.

Acta Biochimica Polonica

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1992

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tom 39

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nr 1

6

Theoretical evidence of H-bridges for the octahedral complexes of L-ascorbic acid and cadmium [II]

75%

Kleszczewska E., Moniuszko-Jakoniuk J., Kleszczewski T.

Polish Journal of Environmental Studies

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1996

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tom 05

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nr 6

This paper describes the optimization of the geometry of investigated system - L-ascorbic acid and cadmium octahedral complex. The research was carried out using semi-empirical CNDO calculations with minimization based on Polak-Ribiere conjugate gradient method. The structures have been confirmed with spectrophometric experiments.

7

The detoxification of plant cells under heavy metals stress conditions

75%

Migocka M., Klobus G.

Polish Journal of Natural Sciences. Supplement

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2003

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tom 01

8

Detoxification of cadmium in Nicotiana plumbaginifolia cell culture: the role of phytochelatins, organic acids and Cd-binding proteins

75%

Fenik S., Solodushko V., Trofimyak T., Blume Y.

Biological Bulletin of Poznań. Supplement

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1997

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tom 34

9

Cadmium and glutathione s-transferase activity in caterpillars of Smerinthus ocellatus L.

75%

Chrascina M., Kafel A.

Biological Bulletin of Poznań. Supplement

|

1996

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tom 33

10

Detoxification of aflatoxin B1 and change in microflora pattern by probiotic in vitro fermentation of broiler feed

63%

Slizewska K., Smulikowska S.

Journal of Animal and Feed Sciences

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2011

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tom 20

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nr 2

The aim of this study was to determine the influence of spontaneous fermentation and that with the use of probiotic bacteria and yeast on aflatoxin B1 concentration and the microflora pattern during fermentation. The probiotic preparation used contained bacteria resistant to gastric juice and bile: Lactobacillus paracasei LOCK 0920, Lactobacillus brevis LOCK 0944, Lactobacillus plantarum LOCK 0945, as well as live yeasts Saccharomyces cerevisiae LOCK 0140 of high fermenting capacity. After 6-h fermentation with the probiotic, in feed mixture with a low concentration of aflatoxin B1 (1 mg/kg), the amount of aflatoxin B1 decreased by 55%. In the case of a high concentration (5 mg/kg) the decrease in aflatoxin B1 was about 39%. This tendency was sustained during the following hours of incubation (12th and 24th h). The application of probiotic bacteria and yeasts resulted in the reduction of aerobic spore forming bacteria.

11

Uptake and localization of cadmium by Biscutella laevigata, a cadmium hyperaccumulator

63%

Pielichowska M., Wierzbicka M.

Acta Biologica Cracoviensia. Series Botanica

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2004

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tom 46

57-63

Biscutella laevigata has recently been recognized as a species able to accumulate large amounts of cadmium. The experiments reported in this paper were conducted on two geographically isolated populations of B. laevigata in Poland. Both populations grow on metalliferous soils: a lead-zinc (calamine) waste heap in Bolesław near Olkusz (189 mg Cd/kg d.m.) and limestone rock in the West Tatra Mts (1.4-6.1 mg Cd/kg d.m.). The two populations were compared after cultivating them in medium containing cadmium salt (2-120 mg/dm3) for 3-30 days. Root-to-shoot transport of cadmium was higher in the waste-heap population than in the mountain population. In the waste-heap population, large amounts of cadmium were transported to the oldest leaves, reaching levels even twice those of the mountain population. This shows that the ability to hyperaccumulate metals may be a property of a population, not an entire species, and that the ability to accumulate cadmium in the oldest (withering) leaves may be a way the plant eliminates the toxic metal. Histochemical detection of cadmium (with dithizone) in tissues showed that it was taken up by the root hairs and then transported through vascular bundles to the leaves. The surface cells of the leaves, the epiderm and hairs accumulated particularly large amounts of cadmium. The leaves of the B. laevigata waste-heap population are much more thickly covered by hairs than those of the mountain population; we suggest that the ability to accumulate cadmium in leaf hairs may be a mechanism of detoxifying and hyperaccumulating cadmium in the shoots of that population.

12

Skeletal muscle wasting occurs in adult rats under chronic treatment with paracetamol when glutathione-dependent detoxification is highly activated

63%

Mast C., Joly C., Savary-Auzeloux I., Remond D., Dardevet D., Papet I.

Journal of Physiology and Pharmacology

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2014

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tom 65

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nr 5

13

NADPH-dependent alkenal-one oxidoreductase (AOR) supported the growth and the acclimation to the high light in Arabidopsis thaliana

63%

Saito R., Ifuku K., Sato F., Sakamoto K., Ikeda K., Tamoi M., Yamamoto H., Sugimoto T., Yamauchi Y., Amako K., Shimakawa G., Makino A., Miyake C.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2013

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tom 94

|

nr 2

14

Phytodegrdation and biodegradation in rhizosphere as efficient methods of reclamation of soil, contaminated by organic chemicals (a review)

63%

Spaczynski M., Seta-Koselska A., Patrzylas P., Betlej A., Skorzynska-Polit E.

Acta Agrophysica

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2012

|

tom 19

|

nr 1

Technical methods of purification of large areas of low and medium pollution are powerful, but extremely difficult to apply on a wide scale. This is due to high costs and the need to have specialised equipment during remediation. Phytoremediation is a much less complicated method. This environment cleaning technology uses the above-average capacity of some plant species to accumulate (socalled hyper-accumulation) or metabolise toxic chemicals. Soil microorganisms living in the rhizosphere also play an invaluable role in the degradation of harm-ful organic compounds; they are often much more involved in the mineralisation of xenobiotics than plants. Since plants provide favourable conditions for soil microorganisms to live – specific cooperation between them is possible. This kind of relationship can be useful in very effective removal of many toxic organic compounds, such as pesticides, polychlorinated biphenyls, polycyclic aromatic hydrocarbons and other petroleum compounds, from the soil. Although this process is relatively slow compared to other methods, its low invasiveness and economic considerations make it worthwhile. Currently, attempts at improvement of the natural process of phytoremediation using genetic engineering are undertaken more and more often. Among other things, genes encoding cytochromes from other organisms are implanted into the plant genome. This idea is constantly being developed and the results of research that is more and more widely conducted in this are promising.

15

Effect of detoxified aflatoxin B1 contaminated products on some in vivo and in vitro plant physiological systems

63%

Das C., Mishra H. N.

Acta Physiologiae Plantarum

|

2001

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tom 23

|

nr 3

16

Ozone effects on trees, where uptake and detoxification meet

63%

De T. L., Vandermeiren K., D'Haese D., Bortier K., Asard H., Ceulemans R.

Dendrobiology

|

2002

|

tom 47

Ozone is the most important air pollutant and its concentration in ambient air is still rising. Ozone concentrations measured at reference height (50 m is EMEP ozone modelling height), do not reflect the real concentration at the top of the vegetative canopy and do not provide sufficient information about the ozone fluxentering the leaves. Modelling stomatal conductance is leading to estimations of cumulative ozone uptake and enables much better to evaluate the impact of ozone on trees. The negative impact of ozone exposure has a measurable effect on physiological processes such as stomatal conductance, photosynthesis and respiration. Disturbance of the basic physiological processes is leading to growth and wood production losses. There have been several attempts to establish critical levels (CL) for ozone effects on forest trees. Average concentrations and cumulative exposure indices are satisfactory to some extent, but do not fully describe the potential impact of ozone exposure. Much more promising is an evaluation based on the effective ozone flux, which is a function of the absorbed ozone flux and the defensive response. Ozone uptake takes place primarily through the stomata and reactions of ozone with hydrocarbons released by the plant cells and transformations of dissolved ozone in the apoplastic fluid create many reactive oxygen species of which free radicals are able to initiate membrane lipid peroxidation and destruction of cell membranes. The defence of a plant against absorbed ozone starts in the apoplastic fluid. Ascorbate is believed to be a very important radical scavenger avoiding detrimental effects of reactive oxygen species to the membranes. Other important antioxidants are phenolics. The defensive response can be linked to the abundance of ascorbate or the ability of the plants to regenerate (reduce) ascorbate from monodehydroascorbate and dehydroascorbate. The reduction of dehydroascorbate takes place in the symplast where ascorbate can be transported back through the plasma membrane into the apoplast. Ozone exposure also causes oxidative stress of the plant cell interior by the formation of reactive oxygen species. Plants can cope with those toxic substances in the symplast by using antioxidants such as ascorbate, -tocopherol, glutathione and carotenoids and enzymes such as superoxide dismutases, catalases and several peroxidases. The complexity of the apoplastic and symplastic antioxidative capacity with different turnover rates and transport of antioxidants makes it difficult to determine the total antioxidative power.

17

Transport of glutathione-conjugates in human erythrocytes

63%

Sharma R., Awasthi S., Zimniak P., Awasthi Y. C.

Acta Biochimica Polonica

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2000

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tom 47

|

nr 3

The last step of detoxification of both endogenous and environmental toxicants is typically a conjugation that produces a bulky hydrophilic molecule. The excretion of such conjugates out of cells is of sufficient biological importance to have led to the evolution of ATP-driven export pumps for this purpose. The substrate specificity of such transporters is broad, and in some cases it has been shown to include not only anionic conjugates but also neutral or weakly cationic drugs. In the present article, we review the molecular identity, functional and structural characteristics of these pumps, mainly on the example of human erythrocytes, and discuss their physiological role in detoxification and in the multidrug resistance phenotype of cancer cells.

18

Ischemia-reperfusion of the liver impairs the inducibility of microsomal cytochrome P450 system by phenobarbital in rats

63%

Wiaderkiewicz R., Wiaderkiewicz A., Czekaj P., Lebda-Wyborny T., Kaszuba M.

Acta Poloniae Toxicologica

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2002

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tom 10

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nr 2

19

Chemical characteristics of melanin from Cladosporium cladosporioides

63%

Chodurek E., Latocha M., Kurkiewicz S., Buszman E., Swiatkowska L., Wilczok T.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1998

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tom 46

|

nr 2

20

The role of glutathione in detoxification of cadmium and excess copper in spinach plants

63%

Tukendorf A.

Acta Physiologiae Plantarum

|

1993

|

tom 15

|

nr 3

Ograniczanie wyników

Placenta as a protecting barrier - some properties of glutathione-S-transferase

Chemical detoxification of carcinogenic heterocyclic aromatic amines by isothiocyanates

Textile azo dye decolorization and detoxification using bacteria isolated from textile effluents

Glutathione: its role in the detoxication of reactive oxygen and environmental chemicals

The effect of exo- and endogenous compounds on the activity of glutathione-S-transferase from monkey brain

Theoretical evidence of H-bridges for the octahedral complexes of L-ascorbic acid and cadmium [II]

The detoxification of plant cells under heavy metals stress conditions

Detoxification of cadmium in Nicotiana plumbaginifolia cell culture: the role of phytochelatins, organic acids and Cd-binding proteins

Cadmium and glutathione s-transferase activity in caterpillars of Smerinthus ocellatus L.

Detoxification of aflatoxin B1 and change in microflora pattern by probiotic in vitro fermentation of broiler feed

Uptake and localization of cadmium by Biscutella laevigata, a cadmium hyperaccumulator

Skeletal muscle wasting occurs in adult rats under chronic treatment with paracetamol when glutathione-dependent detoxification is highly activated

NADPH-dependent alkenal-one oxidoreductase (AOR) supported the growth and the acclimation to the high light in Arabidopsis thaliana

Phytodegrdation and biodegradation in rhizosphere as efficient methods of reclamation of soil, contaminated by organic chemicals (a review)