Wyniki wyszukiwania - AGRO

1

Effect of ethanol on the processes of thermoregulation

100%

Huttunen P.

Acta Physiologica Polonica

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1990

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tom 41

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nr 1-3

2

Effect of ethanol on lipid bilayer relaxation kinetics

100%

Przybylo M., Borowik T., Kraszewski S., Langner M.

Cellular and Molecular Biology Letters

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2005

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tom 10

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nr Suppl.

3

Histomorphological evaluation of fibrogenesis in the pancreas after an experimental administration of ethanol

88%

Pedrycz A., Boratynski Z., Kot K., Mendocha J., Rubaj J., Cichacz B., Plaskota W.

Bulletin of the Veterinary Institute in Puławy

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2008

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tom 52

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nr 3

The purpose of the presented study was the analysis of post-ethanol fibrogenesis in the pancreas, being one of the causes of exo- and endocrine pancreatic insufficiency. The study was performed on rats classified into a control and experimental group. The animals from the experimental group were given 20% ethyl alcohol solution ad libitum for 4 weeks. After decapitation of the animals, pancreatic segments were collected and histological sections of the segments stained with haematoxylin and eosin and with Masson's method for connective tissue were prepared. In the sections from the experimental group, a significant increase in the number of connective tissue fibres was observed. They were observed not only around the lumen of glandular ducts (as it was the case in the control group), but also among some vesicles and on the border of the pancreatic lobules. Their accumulation was also observed around the cells forming the pancreatic islets.

4

Fed-batch simultaneous saccharification and ethanol fermentation of native corn starch

75%

Szymanowska D., Grajek W.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2009

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tom 08

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nr 4

5-16

Background. The most important innovations in boethanol production in the last decade were: simultaneous saccharification and fermentation processes (SSF), high gravity fermentation, the use of new enzyme preparation able to hydrolyse native granular starch and construction of genetically modified strains of microorganisms able to carry out simultaneous production of hydrolytic enzymes and fermentation of C6 and C5 sugars. The aim of this study was to assess the efficiency of ethanol fermentation using new type of amylolytic enzymes able to hydrolyse native corn starch in a SSF process. Material and methods. The simultaneous saccharification and fermentation of raw corn flour by fed-batch processes using Saccharomyces cerevisiae strain Red Star Ethanol Red and Stargen 001 enzyme preparation was performed. As experimental variable were investigated: fermentation temperature (35-37-40°C), rate of mash stirring (100 and 200 rpm), fermentation time (0-92 h) and dosage of corn flour (different portion and different time). Results. It was found that optimal temperature for fed-batch SSF process was 37°C at initial pH of 5.0. However, the yeast intensively fermented the saccharides also at 40°C. The fermentation stirring rate has significant effect on starch utilization and fermentation production. The prolongation of fermentation time over 72 h has no substantiation in additional ethanol production. In all experimental fermentations the level of produced organic acids was very low, significantly below toxic concentration for the yeast. Conclusions. It was stated that the use of new method of starch raw material preparation resulted in satisfied fermentation yield and allowed to reduce energy requirements for starch liquefaction

5

Dual effect of ethanol on inward rectifier potassium current IK1 in rat ventricular myocytes

75%

Bebarova M., Matejovic P., Pasek M., Simurdova M., Simurda J.

Journal of Physiology and Pharmacology

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2014

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tom 65

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nr 4

6

Effect of simultaneous administration of ibuprofen and ethanol on the alkaline phosphatase activity in the small intestine

75%

Wisniewska I. E., Gawlik Z., Sasinowska-Motyl M.

Folia Histochemica et Cytobiologica

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1985

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tom 23

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nr 1-2

7

Application of Saccharomyces cerevisiae and Pichia stipitis karyoductants to the production of ethanol from xylose

75%

Kordowska-Wiater M., Targonski Z.

Acta Microbiologica Polonica

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2001

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tom 50

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nr 3-4

291-299

8

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Neutralization efficiency of alcohol based products used for rapid hand disinfection

75%

Chojecka A., Tarka P., Kierzkowska A., Nitsch-Osuch A., Kanecki K.

Roczniki Państwowego Zakładu Higieny

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2017

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tom 68

|

nr 4

Background. Alcohols are the most commonly used active substances in preparations for quick hand disinfection. They should be bactericidal in very short contact time. PN-EN 13727 + A2: 2015-12 standard, for testing hygienic and surgical handrub disinfection preparations, provides mandatory test conditions of disinfectants in contact times with the range of 30 s to 60 s (hygienic handrub disinfection) and 60 s to 5 min (surgical handrub disinfection). A short contact times for hand hygiene products require a short time of neutralization process. For contact times less than or equal to 10 minutes, the estimated neutralization time is 10 s ± 1 s. Neutralization is a process that abolishes the action of disinfectants. Correct application of this process allows for proper use of disinfectants in practice and its biocidal effect. Objectives. Verification of the effectiveness of 10-second neutralization time of alcohol based preparations for hygienic handrub disinfection. Materials and Method. Neutralization of two products with different ethanol content (89% and 70%) for hygienic handrub disinfection according to PN-EN 13727 + A2: 2015-12 was investigated. The effectiveness of the neutralizer was assessed by determining toxicity of neutralizer, activity of residual effects of the tested products and their derivatives produced during neutralization (10 s) for test organisms (Staphylococcus aureus ATCC 6538; Pseudomonas aeruginosa ATCC 15442; Enterococcus hirae ATCC 10541; Escherichia coli K12 NCTC 10538). Results. The 10-second neutralization time was sufficient to eliminate the residual activity of products for hygienic handrub disinfection with differentiated ethanol concentration. The neutralizer used did not show toxicity to bacteria and did not produce toxic products with tested preparations after neutralization. Conclusions. The use of 10-second neutralization time allows in a precise way designate the contact times for hygienic handrub disinfection products.

9

Effect of solvent composition on antiradical activity of dried Origanum vulgare extracts

75%

Kaczmarek D., Zielinski R.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2018

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nr 3

10

Combustion behaviour of alcohol-diesel microemulsions in a C.I. engine

75%

Bhattacharya T. K.

Annual Review of Agricultural Engineering

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2009

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tom 07

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nr 1

11

The rate constants of the reaction of hydroxyl radicals [OH] with alcohol dehydrogenase and glyceraldehyde-3-phosphate dehydrogenase

75%

Kowalczyk A., Puchala M.

Cellular and Molecular Biology Letters

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2003

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tom 08

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nr 3

The rate constants of the reactions of alcohol dehydrogenase and glyceraldehyde-3-phosphate dehydrogenase with hydroxyl radicals were determined using the method of steady-state competitive reactions. Ethanol was used as a scavenger of hydroxyl radicals. The rate constants of the reactions of hydroxyl radicals with alcohol dehydrogenase and glyceraldehyde-3-phosphate dehydrogenase were found to be 2.8·1012dm3mol-1s-1, and 1.6·1012dm3mol-1s-1, respectively.

12

Does chronic ethanol administration have influence on pancreatic regeneration in the course of caerulein induced acute pancreatitis in rats

75%

Rydzewska G., Jurkowska G., Dzieciol J., Faszczewska A., Wroblewski E., Gabryelewicz A.

Journal of Physiology and Pharmacology

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2001

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tom 52

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nr 4,2

This study was undertaken in order to determine the influence of chronic ethanol administration on pancreatic regeneration during acute pancreatitis (AP). Rats were pair fed with isocaloric diet containing or not ethanol. After 8 weeks of such feeding AP was induced by sc injection of caerulein (Cae). 6 h, 24 h and 5 days after first Cae dose pancreatic weight, amylase, chymotrypsin, protein, RNA, DNA contents were determined and phosphatidic acid (PA) production in isolated pancreatic acini was measured. Proliferating cells were quantified by immunochemical staining of cells incorporating bromodeoxyuridine (BrdU). Results: Pancreatic weight was significantly higher at 6 h after first Cae injection in both, ethanol fed (EF) and control groups (C), however at 24 h pancreatic weight did not differ from prior to AP induction in EF rats. Ethanol feeding (EF) did not influence significantly protein, chymotrypsin and amylase content in pancreatic tissue in groups with AP. In EF rats RNA content after 5 days of AP was higher than in control animals. Total DNA content in EF rats with AP was lower 6 h after AP induction, earlier than in control animals with AP. Immunochemistry showed higher labelling index for BrdU after 6 h, 24 h and 5 days of AP in EF rats. In contrast to this findings, in EF animals, AP induction was not able to stimulate further PA accumulation. Conclusion: We conclude that chronic ethanol feeding, while inhibiting PA accumulation in comparison to control group, does not impair pancreatic tissue regeneration during the early phase of Cae-induced AP. Stimulation of regenerative/reparative processes in EF rats during Cae-induced AP seems to be even more pronounced than in the control group.

13

Effects of ethanol and-or ethylene glycol on metabolic enzymes in rats

75%

Olszowy Z., Nowicka J., Plewka A., Plewka D., Nowaczyk G., Kaminski M.

Acta Poloniae Toxicologica

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2001

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tom 09

|

nr 1

14

Hippocampal capillaries in different age groups of chronically ethanol-intoxicated rats. Morphometrical studies

75%

Kraszpulski M., Tukaj C., Wrzolkowa T.

Folia Morphologica

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2000

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tom 59

|

nr 2

The influence of chronic ethanol intoxication on the terminal vascularization of particular hippocampal fields and layers was investigated in different age groups of rats. Thirty-six male Wistar rats aged 6 weeks were used in the study. For twelve months 24 of them drank only 25% ethanol — 12 starting at 6-week- -age and 12 at 3-month-age. The control group of 12 rats drank only water. As an effect of long-term ethanol exposure on hippocampal capillaries we observed the increase in the terminal vessel diameter and the decrease in microvascular length, surface, and volume densities. These changes varied between different age groups and between particular hippocampal regions. The observed age and regional differentiation of ethanol-related microvascular changes did not correlate well with the damaging effects of alcohol on corresponding neuronal elements, which emphasizes the very complicated pathogenesis of ethanol-induced injuries.

15

Morphometrical study of the rat liver sinusoids in chronic ethanol intoxication

75%

Forys M., Tukaj C., Krolikowski A.

Folia Morphologica

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1996

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tom 55

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nr 4

16

The effect of green tea extract on the activity of alcohol dehydrogenase in the liver of rats

75%

Chrostek L., Tomaszewski W., Szmitkowski M.

Acta Toxicologica

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2005

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tom 13

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nr 1

17

Influence of ethanol on the activity of glycosidases in rats exposed to cadmium [Cd2]

75%

Arciuch L. P., Omasta A., Rostkowska K., Galazyn-Sidorczuk M., Moniuszko-Jakoniuk J., Zwierz K.

Acta Biochimica Polonica

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1995

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tom 42

|

nr 3

Inhibition by ethanol of the activities of lysosomal exoglycosidases in stomach, small intestine, liver and brain of rats exposed to cadmium (Ca ) was determined. Out of the glycosidases tested the most distinct effect of Cd2+ and ethanol administered to the rats in vivo was observed in the small intestinal mucosa in a decreasing orden N-acetyl-^-hexosaminidase, p-galactosidase and a-fucosidase.

18

The influence of ethanol on tissue distribution and the toxic effects of lead on rats

75%

Kulikowska E., Moniuszko-Jakoniuk J., Jablonska E., Kaluzynski A.

Polish Journal of Environmental Studies

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1995

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tom 04

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nr 4

The aim of this study was to elucidate the influence of ethanol on concentrations of lead in tissues of rats exposed to lead acetate. The experiment was made on Wistar rats. The animals were given lead acetate (500 mg 1-1 of lead) in drinking water for 6 weeks. For 4 to 5 days before the end of exposure to lead, the animals were given intragastrically 25% solution of ethanol in doses of 5 g/kg body weight, every 12 hours. After exposure to lead acetate an increased level of lead was found in all examined tissues, i.e. blood, liver, kidneys, spleen, bones. Ethanol applied together with lead caused a redistribution of lead from bones and liver to blood and kidneys.

19

Ultrastructural evaluation of pancreatic parenchyma in the course of intoxication with ethanol

75%

Kot K., Boratynski Z., Pedrycz A., Mendocha J., Rubaj J., Cichacz B., Plaskota W.

Bulletin of the Veterinary Institute in Puławy

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2008

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tom 52

|

nr 3

The experiment was performed on rats that were given ethanol ad libitum for 4 weeks. After decapitation of the animals, pancreatic sections were prepared for an electron microscopy. A significant broadening of the rough endoplasmic reticulum cisterns in the vesicular cells was observed as well as the presence of nuclei with irregular outlines resulted from placation of the nuclear membrane, which is worth of attention. Such a picture suggests that the examined cells had a lowered metabolic ability.

20

Development of the age-related spontaneous spike-wave discharges in rat neocortex and exposure to a model neurotoxin

75%

Gralewicz S., Luczak C., Wiaderna D., Tomas T.

Acta Neurobiologiae Experimentalis

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1995

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tom 55

|

nr 1

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