Wyniki wyszukiwania - Biblioteka Nauki

1

Cognitive consequences of metabolic disorders

100%

Lopuszanska U. , Cholewa K. , Kozyra M.

Journal of Pre-Clinical and Clinical Research

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2020

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tom 14

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nr 4

2

Carbohydrate metabolism in okra [Abelmoschus esculentus [L.] Moench] seeds during germination

100%

Thind S. K. , Malik C. P.

Acta Physiologiae Plantarum

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1995

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tom 17

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nr 4

3

The carbohydrate metabolism of Fasciola hepatica, an example of biochemical adaptations in parasitic helminths

100%

Tielens A. G. M.

Acta Parasitologica

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2000

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tom 45

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nr 2

EN

The energy metabolism of the liver fluke, Fasciola hepatica, offers good examples of adaptations in metabolism in parasitic helminths. Adaptations in the metabolism of parasitic helminths are twofold. On the one hand, adaptations occur to the fact that for the parasitic stages, the environment (host) provides many substrates that can be used directly for anabolic as well as catabolic purposes. Therefore, parasitic stages have lost (parts of) many of the anabolic pathways common to non-parasitic organisms. On the other hand, parasitic helminths continuously adapt their metabolism to the different environments they encounter during their life cycle, while alternating between free-living and parasitic stages. In this review the carbohydrate metabolism of F. hepatica will be discussed as model system for these adaptations. Adaptations to the parasitic way of life, as well as to the changing environment will be presented. Special attention will be paid to transitions in carbohydrate metabolism during the development in the final host, from an aerobic energy metabolism in the juvenile liver fluke to an anaerobic one in the mature adult. Changes in the electron-transport chain, including the quinone used in the different types of metabolism, will also be discussed.

4

Triiodothyronine effect on some parameters of carbohydrate metabolism in rats blood and liver. I. In vivo effect of triiodothyronine on liver glycogen content, blood metabolites and serum glycogenolytic activity

84%

Torlinska T. , Grzymislawski M. , Paluszak J. , Sosnowski P. , Torlinski L. , Kozlik J.

Acta Physiologica Polonica

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1987

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tom 38

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nr 4

5

The volatile fatty acids production by ciliate protozoa in the rumen of sheep

84%

Michalowski T.

Acta Protozoologica

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1987

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tom 26

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nr 4

6

Variation in gene transcription and protein for key enzymes of carbohydrate metabolism in poplar xylem with respect to growth phase

84%

Alluvada J. , Fokar M. , Holaday A. S.

Acta Physiologiae Plantarum

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2014

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tom 36

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nr 09

EN

We compared gene expression levels for enzymes of carbohydrate metabolism in the twig xylem of two Populus species with the seasonal levels of starch and soluble sugars (sucrose, glucose, and fructose) and relative levels of the enzymes. Plants of Populus deltoides Bartr. ex Marsh and P. balsamifera L., 3–4 years old, were grown outside in Lubbock, TX, USA in 43 L pots. The xylem in the middle portion of the twigs was sampled during the dormant period (November–February), at bud break (for P. balsamifera), and during the growth flush (April–July). The gene expression for ADP-glucose pyrophosphorylase (AGPase), sucrose synthase (SuSy), and sucrose-phosphate synthase (SPS) generally coincided with the levels of the carbohydrates in whose metabolism these enzymes are involved. Gene expression for AGPase and its protein levels were high when the xylem starch content was high (growing period). However, P. balsamifera maintained high AGPase levels in dormant and growing twigs, unlike P. deltoides whose dormant twigs had low AGPase and low gene expression. Compared to growing twigs, gene expression for SuSy and SPS and their protein levels were higher in dormant twigs when soluble sugar content was higher. No down-regulation of these genes appears to occur when pools of the associated carbohydrates are high. Contrary to our expectation, the gene expression for bamylase was highest in growing twigs when starch content was high. High β-amylase gene expression in growing twigs may be involved in maintaining a sufficient level of soluble sugars for growth through possibly controlling the extent of starch accumulation.

7

Zagrożenia zdrowotne związane ze stosowaniem syropu wysokofruktozowego w produkcji żywności

84%

Biernacka K. , Hoffman M. , Piotrowska A.

Postępy Techniki Przetwórstwa Spożywczego

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2016

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tom Nr 2

89--96

PL

Syrop wysokofruktozowy jest powszechnie stosowany w wielu produktach spożywczych, głównie w napojach i słodyczach, czy nawet produktach mięsnych i przetworach mlecznych, częściowo wypierając sacharozę. Pełni w nich funkcję teksturotwórczą, nadaje smak i aromat, a także przedłuża trwałość. Wyniki badań wskazują, że powszechne stosowanie syropu fruktozowego i związane z tym wysokie spożycie fruktozy zwiększa ryzyko rozwoju wielu chorób. Długoterminowe negatywne skutki mogą obejmować zmiany poziomu hormonów insuliny i leptyny, zmiany apetytu oraz metabolizmu wątrobowego, prowadząc do rozwoju insulinooporności, cukrzycy, otyłości i chorób układu sercowo-naczyniowego.

EN

High fructose corn syrup is commonly used in many food products, such as beverages, sweets or even meat and milk products, partially replacing sucrose. It functions as the firming factor, provides taste and aroma as well as increases shelf-life of products. According to current studies it has an influence on the development of many diet related diseases. Long-term adverse consequences of the high fructose corn syrup consumption may include changes in hormone level insulin and leptin, changes in appetite and liver metabolism, leading to the development of insulin resistance, diabetes, obesity and cardiovascular diseases.

8

GGT-assisted glutathione degradation is functional to apoplastic redox control and seed storage proteins accumulation

84%

Trentin A. , Pivato M. , Giaretta S. , Fabrega-Prats M. , Arrigoni G. , Prasad D. , Masi A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2013

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tom 94

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nr 2

9

Professor Jan Kowalczyk on the 50th anniversary of his professional career and 70th birthday

84%

Zebrowska T.

Journal of Animal and Feed Sciences. Supplement

|

2001

|

tom 10

|

nr 1

10

Effect of various amounts of folic acid added to rat food on food intake and some parameters of carbohydrate metabolism

84%

Prusiewicz-Witaszek U. , Maciejewska M.

Archivum Veterinarium Polonicum

|

1994

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tom 34

|

nr 3-4

11

Badania wybranych wskaznikow przemiany weglowodanowej u owiec w doswiadczalnej kwasicy

67%

Adamski W.

Acta Academiae Agriculturae ac Technicae Olstenensis. Veterinaria

|

1992

|

tom 20

155-170

PL

Badania wykonano u 36 owiec rasy polskiej długowełnistej, w wieku 2-4 lat, podzielonych na 3 grupy. Owce z grupy I otrzymywały dożylnie 6% roztwór kwasu mlekowego, a z grupy II i III 12% roztwór tego kwasu. Przed rozpoczęciem doświadczenia oraz w 1., 6., 24., 48., 72., 96. i 120. h jego trwania przeprowadzono badania kliniczne i hematologiczne oraz oznaczono w krwi stężenie glukozy, kwasu mlekowego i pirogronowego oraz wskaźniki równowagi kwasowo-zasadowej. W surowicy oznaczono aktywność LDH i G-6-P-azy. W homogenacie wątroby określono aktywność G-6-P-azy i zawartość glikogenu. Przeprowadzono badania histopatologiczne tego narządu. Po podaniu dożylnym, zwłaszcza dożwaczowym, roztworów kwasu mlekowego obserwowano u zwierząt doświadczalnych objawy kwasicy metabolicznej. Stwierdzono podwyższenie stężenia kwasu mlekowego z jednoczesnym spadkiem poziomu kwasu pirogronowego we krwi oraz wzrost aktywności G-6-P-azy i obniżenie zawartości glikogenu w tkance wątroby. Badania histopatologiczne wykazały zmiany zwyrodnieniowe komórek wątroby. Uznano też przydatność wymienionych wskaźników do oceny zaburzeń przemiany węglowodanowej.

RU

Исследования провели на 36 овцах польской длинношерстной породы в возрасте 2—4 лет. Животных разделили на три группы. Овцы I группы получали внутривенно 6°/о раствор молочной кислоты, а овцы II и III группы — 12% раствор молочно! кислоты. До начала опыта, а также в 1, 6, 24, 48, 72, 96 и 120 часу опыта проводили клинические и гематологические исследования, определяли концентрацию глюкозы молочной и пировиноградной кислоты в крови, а также показатели кислотнощелоч- ного равновесия. В сыворотке крови определяли активность лактатдегидрогеназы и глю- козо-6-фосфатазы. В гомогенате печени определяли активность глкжозо-6-фосфатазы и содержание гликогена. Провели гистопатологические исследования этого органа После внутривенного введения растворов молочной кислоты, а особенно после введения в рубец, у опытных животных наблюдались признаки метаболического ацидоза. Отметили повышение концентрации молочной кислоты с одновременным снижением уровня пировиноградной кислоты в крови, а также повышение активности глюкозо-6-фосфатазы и снижение содержания гликогена в ткани печени. В ходе гисто- патологических исследований обнаружили дегенеративные изменения клеток печени. Установили, что указанные показатели могут использоваться для оценки нарушений углеводного обмена.

EN

36 ewes of Polish longwool breed, 2-4 years of age, were divided to 3 groups. I group was intravenous injected with 6% solution of lactic acid, II and III group got 12% solution of this acid. Before begining of experiment and during 1, 6, 24, 48, 72, 96 and 120 hs of experiment, clinical and haematological analysis were done. Concentration of glucose lactic and pyruvic acid in blood and indexes of acid-base balance were estimated. LDH and G-6-P activity were also estimated in serum. In the liver homogenate, activity of G-6-P and glycogen level were analysed. This organ was histopathologically examined, too. Intravenous and especially intrarumen injections of lactic acid solution, methabolic acidosis was observed in experimental animals. Increased concentration о lactic acid paraleli to decreased pyruvic acid level in blood and rised activity of G-6-P with set glycogen level in liver tissue were observed. Histopathological examination of liver showed cell degradation in this organ. Aforesaid indexe can be use to estimation disturbances in carbohydrate changes.

12

Badania wlasciwosci farmakodynamicznych roztworu kwasu borowego

67%

Drobnik M. , Latour T.

Roczniki Państwowego Zakładu Higieny

|

2001

|

tom 52

|

nr 4

329-336

PL

W badaniach doświadczalnych na zwierzętach laboratoryjnych określono wpływ roztworu H3BO3 zastosowanego doustnie, na niektóre parametry gospodarki węglowodanowej, tłuszczowej, białkowej, wodno-elektrolitowej, morfologię oraz równowagę kwasowo-zasadową we krwi. Zbadano oddziaływanie roztworu kwasu na mięśnie gładkie jelita, wydalanie moczu i żółci

EN

By virtue of experimental investigations that had been carried out on animals an essential biological action of the aqueous solution of boric acid on the organism could be stated. The solution containing 274.46 mg of H3BO3 in a litre, administered to rats for 30 days orally in an "ad libitum" dose, caused changes in the lipid metabolism and in the water-mineral balance of the organism and in the acid-base equilibrium of the blood, it did not affect the morphology and the parameters of carbohydrate and protein metabolism. No influence has been stated of the investigated boric acid, as used in guinea pigs, on the excretion of bile. Suitably diluted with a nutritive fluid the solution acted spastically on the peristalsis of the small intestine of the rabbit.

13

Przemiany węglowodanów w ziemniakach. I. Przemieszczanie cukrów i fosforylazy do warstw zewnętrznych bulwy ziemniaczanej przy składowaniu w temperaturze bliskiej 0°

67%

Zaleski J.

Roczniki Państwowego Zakładu Higieny

|

1963

|

tom 14

|

nr 1

14

Rola chromu w etiopatogenezie wybranych chorob

67%

Krzysik M. , Grajeta H.

Bromatologia i Chemia Toksykologiczna

|

2010

|

tom 43

|

nr 3

428-435

15

The influence of the cooling of donor cultures on the in vitro adventitious regeneration and carbohydrate metabolism of four dwarfing apple rootstocks

67%

Orlikowska T. , Zawadzka M. , Kucharska D. , Lahuta L. B.

Acta Physiologiae Plantarum

|

2010

|

tom 32

|

nr 2

EN

We examined the effects of cooling applied for 4 to 20 weeks on donor cultures of four dwarfing apple rootstocks (P16, P22, P59 and M26). Our aim includes increasing their competence for in vitro adventitious shoot regeneration from the leaves. Donor cultures were maintained on a shoot multiplication medium at 4℃ in the dark for 4 months, followed by subculture on a fresh medium for 4 weeks. The cooling of the cultures caused an increase in the adventitious shoot number and a decrease in the starch content and an increase in the soluble sugar content (monosaccharides, raffinose and stachyose). The accumulation of stachyose in response to cold is a new observation, and it suggests that raffinose and stachyose play important role in the acclimation of dwarf apple rootstocks to low temperatures.

16

Properties of trehalase from different organs of alfalfa, Medicago sativa

67%

Wolska-Mitaszko B. , Molestak E. , Malek W.

Acta Physiologiae Plantarum

|

2005

|

tom 27

|

nr 1

EN

Trehalase activity (THA) was identified in the cell-free extracts of various organs of Medicago sativa: roots, roots nodules, stems and leaves, as well as in seediings and seeds. It showed the high activity at acid pH and optimal temperature ranged from 45 ℃ to 55 °C. It was also differently affected by ions, i.e. the presence of calcium stimulated this activity but it was inhibited by Zn2+ and NH4+. After separation by DEAE-cellulose chromatography and purification procedures, trehalase from alfalfa was purified 800 times, and Superose 12 HR gel filtration allowed to determine the molecular weight of 120 kDa for the native enzyme from the stems of alfalfa.

17

Effect of orally administered lectins on carbohydrate metabolism in mice

67%

Zaremba S. , Gil D. , Banach M.

Acta Biologica Cracoviensia. Series Zoologia

|

1999

|

tom 41

18

Influence of short fasting on some aspects of metabolic and adrenergic reaction to stress in the rat

67%

Bieszczynska B.

Acta Biologica Cracoviensia. Series Zoologia

|

1997

|

tom 39

19

Structure-function studies of the phosphoryl-transfer enzyme: phosphoenolpyruvate carboxykinase

67%

Delbaere L. T. J. , Sudom A. M. , Prasad L. , Leduc Y. , Goldie H.

Cellular and Molecular Biology Letters

|

2003

|

tom 08

|

nr 2A

20

Malachite green-induced changes in carbohydrate metabolism and blood chloride levels in the freshwater catfish Heteropneustes fossilis [Bloch]

67%

Srivastava A. K. , Sinha R. , Singh N. , Roy D. , Srivastava S.

Acta Hydrobiologica

|

1995

|

tom 37

|

nr 2

EN

Exposure of the freshwater catfish H. fossilis to an acute concentration of 0.20 mg dm-3 (l/5th of 4 days LC50) of malachite green for 4 days evoked hepatic and muscle glycogenolysis with concomitant hyperglycaemia and chloraemia. Exposure of fish to sub-acute 0.10 mg dm-3 (l/10th of 4 days LC50) and sub-lethal 0.05 mg dm-3 (l/20th of 4 days LC50) concentrations of the dye also evoked a significant increase in blood glucose and chloride levels at short (10-20 days) and long (30-60 days) term as well as liver and muscle glycogenolysis at short term. However, there were no marked changes in the liver glycogen content at the sub-lethal dose or muscle glycogen content at either sub-acute or sub-lethal concentrations for long term exposure.

PL

Osobniki H. fossilis poddane przez 4 dni działaniu ostrego stężenia zieleni malachitowej (0,20 mg dm-3; 1/5 4-dniowego LC50) wykazały glikogenolizę wątroby i mięśni oraz hyperglikemię i chloremię. Poddanie krótkiemu (10-20 dni) i długiemu (30-60 dni) działaniu stężenia podostrego (0,10 mg dm-3; 1/10 4-dniowego LC50) i subletalnego (0,05 mg dm-3; 1/20 4-dniowego LC50) również doprowadziło do istotnego wzrostu poziomu glukozy i chlorków we kiwi. Oba stężenia działające w ciągu 10-20 dni wywołały również glikogenolizę wątroby i mięśni. Jednakże w ciągu długiej ekspozycji nie zaznaczyły się zmiany ilości glikogenu w wątrobie przy stężeniu subletalnym ani zmiany ilości glikogenu mięśniowego przy obu stężeniach.