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  • 1
    ISSN: 1436-6215
    Keywords: Oyster mushroom ; cholesterol ; absorption ; catabolism ; Austernpilz ; Cholesterol ; Absorption ; Katabolismus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Acht Wochen nach der Absetzung männlicher Ratten (Stamm Wistar) wurden die Tiere mit zwei Diätvarianten gefüttert: Die erste erhielt eine Zugabe von 0,3% Cholesterol, die zweite zusätzlich noch 5% von getrocknetem und gemahlenem Austernpilz. Die Zugabe von Austernpilz zur Cholesteroldiät verursachte eine Herabsetzung des Serumcholesterolspiegels um 33% und des Cholesterolgehaltes in der Leber um 27%. Der Gehalt an Serumtriazylglyzerolen wurde durch die Pilzzugabe zur Diät nicht beeinflußt, aber deren Gehalt in der Leber wurde um 41% verringert. An der Herabsetzung des Serumcholesterolspiegels waren die Lipoproteine von sehr niedriger Dichte mit 55% und die Lipoproteine von niedriger Dichte mit 38% beteiligt. Der Cholesterolgehalt in Lipoproteinen hoher Dichte wurde durch den Austernpilz nicht signifikant beeinflußt. Die Austernpilzzugabe zur Diät setzte die Cholesterolabsorption signifikant um 14% herab, was mittels der Verhältnismethode der Dualisotopenplasma-Methode bestimmt wurde. Die Austernpilze enthaltende Diät beschleunigte um 37% den Fraktionsveränderungsgrad des Cholesterols, was mittels der Zerfallskurvenanalyse von 4−14C-Cholesterol bestimmt wurde.
    Notes: Summary The content of cholesterol in the serum and liver of male Wistar rats fed, for the period of 8 weeks shortly after weaning, a diet containing 0.3% of cholesterol was reduced by 33 and 27% by the addition of 5% of dried oyster mushroom powder. Although the level of serum triacylglycerols was not affected by oyster mushroom, their content in liver of rats on mushroom diet was reduced by 41%. Very-low-density lipoproteins and low-density lipoproteins participated by 55 and 38%, respectively, in the total reduction of serum cholesterol. Cholesterol content in high-density lipoproteins was not significantly affected by oyster mushroom. Cholesterol absorption as determined by dual-isotope plasma ratio method was significantly reduced by 14% with oyster mushroom diet. Similarly, this diet increased by 42% the fractional catabolic rate of cholesterol determined by the analysis of decay curve of [4−14C]cholesterol.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 18 (1962), S. 267-268 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Aus einer Experimentalarbeit, bei welcher die Konzentration der papierelektrophoretisch gewonnenen Lipoproteinfraktionen des Serums Vitamin-C-gesättigter und avitaminöser Meerschweinchen verglichen wurde, geht hervor, dass die Frühstadien der C-Avitaminose den Spiegel der α1-Lipoproteine bedeutend erhöhen und den der α2-Lipoproteine herabsetzen. Dies und die Ergebnisse der durch Tetrachlorkohlenstoff hervorgerufenen Leberschädigung weisen auf die Tatsache hin, dass die Frühstadien der C-Avitaminose den Mechanismus, der den normalen Spiegel der Serumlipoproteine reguliert, beeinflussen, obwohl gleichzeitig die Regenerierungsprozesse der durch Tetrachlorkohlenstoff geschädigten Leber der Beeinflussung entzogen bleiben.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 28 (1972), S. 389-390 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Bei männlichen Wistar-Ratten wurde der Einfluss des “meal-feeding”-Regimes nach täglicher 2stündlicher Fütterung an Leberschnitten auf den Katabolismus von Cholesterol-4-14C geprüft und normal befunden. Im In-vivo-Versuch unter denselben experimentellen Bedingungen zeigte weder der Katabolismus noch die Exkretion des i. p. applizierten Cholesterol-4-14C eine Veränderung.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nutrition 35 (1996), S. 249-252 
    ISSN: 1436-6215
    Keywords: Oyster mushroom ; cholesterol ; very low density lipoproteins ; Austernpilz ; Cholesterol ; Lipoproteine sehr niedriger Dichte (VLDL)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Der Austernpilz (Pleurotus ostreatus) verringert die Produktion und Sekretion der VLD-Lipoproteine bei hypercholesterolämischen Ratten. Nach einer semisynthetischen Diät mit 0,3 % Cholesterol und einem Zusatz von 5 % pulverisiertem Austernpilz (Pleurotus ostreatus) bei männlichen der Wistar-Ratten (Anfangsgewicht von ca. 70 Gramm) haben sich nach 8wöchiger Diät der Wert für das Serumcholesterol um 36 % und die Werte für Cholesterol und Triglyzeride in der Leber um 51 bzw. 32 % verringert. Die Reduzierung des Cholesterolgehaltes in VLD-Lipoproteinen und LD-Lipoproteinen (53 und 47 %) hatte in entsprechendem Verhältnis zur Reduzierung des Serumcholesterols beigetragen. Die Biosynthese aller strukturellen Lipide der VLDL (Phospholipide, Cholesterol, Triglyzeride) in der Leber und die Inkorporation der neu synthetisierten Lipide in die sezernierten naszierenden VLDL (gemessen bei freiwerdenden Verabreichung von Na-Ace-tat-1-14C und Triton WR 1339, das die periphere Lipolyse blockiert) wurden durch die Austernpilzdiät verringert.
    Notes: Summary Oyster mushroom (Pleurotus ostreatus) reduced the production and secretion of nascent very low density lipoproteins in hypercholesterolemic rats. In male Wistar rats (initial body weight about 70 g) fed a semisynthetic diet with 0.3 % of cholesterol, the addition of 5 % of powdered oyster mushroom (Pleurotus ostreatus) to the diet reduced after 8 weeks the level of serum cholesterol (by 36 %) and accumulation of cholesterol and triglycerides in liver (by 51 and 32 %, respectively). The decreased levels of serum cholesterol were caused to the same extent by reduction of cholesterol content in very low density lipoproteins (VLDL) and in low density lipoproteins (LDL) (by 53 and 47 %, respectively). Biosynthesis of all structural lipids of VLDL (phospholipids, cholesterol, triglycerides) in liver and incorporation ofde novo synthesized lipids into secreted nascent VLDL (measured by simultaneous application of Na-acetate-1-14 C and Triton WR 1339 which inhibits peripheral lipolysis) was reduced by application of diet with oyster mushroom.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 34 (1978), S. 1554-1555 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Guinea-pigs with latent vitamin C deficiency have a raised serum triglyceride concentration and significantly reduced post-heparin lipolytic activity in blood plasma.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 210 (1966), S. 204-204 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] White male rats (Wistar stock, weight 180-200 g) were fed ad libitum a high fat-cholesterol diet5 for a period of 7-13 weeks. One group was kept at 22 C; a second group was exposed for 8 h daily to a temperature of 2 + 1 C. Sodium acetate labelled with carbon-14 (40 ^c. per 100 g body-weight) was ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 51 (1995), S. 589-591 
    ISSN: 1420-9071
    Keywords: Oyster mushroom (Pleurotus ostreatus) ; cholesterol ; serum ; lipoproteins ; liver ; HMG-CoA reductase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effect of dried oyster mushroom (Pleurotus ostreatus) on cholesterol (C) content in serum, in lipoproteins and in liver, and on the activity of 3-hydroxy-3-methylglutaryl CoA (HMG-CoA) reductase in liver microsomes, was studied in male rats (strain Wistar, initial body weight 75 g) fed on low-cholesterol (9 mg/100 g) and high-cholesterol (0.3%) diets. Addition of 5% oyster mushroom to both diets reduced significantly the C-content in serum (by 30%), in very-low- and low-density lipoproteins (in a 1∶1 ratio to the decrease of total serum C) and in liver (by 50%), as well as the activity of HMG-CoA reductase (by more than 30%).
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2020-12-10
    Description: Back to top Wildfire occurrence is influenced by climate, vegetation and human activities. A key challenge for understanding the risk of fires is quantifying the mediating effect of vegetation on fire regimes. Here, we explore the relative importance of Holocene land cover, land use, dominant functional forest type, and climate dynamics on biomass burning in temperate and boreo-nemoral regions of central and eastern Europe over the past 12 kyr. We used an extensive data set of Holocene pollen and sedimentary charcoal records, in combination with climate simulations and statistical modelling. Biomass burning was highest during the early Holocene and lowest during the mid-Holocene in all three ecoregions (Atlantic, continental and boreo-nemoral) but was more spatially variable over the past 3–4 kyr. Although climate explained a significant variance in biomass burning during the early Holocene, tree cover was consistently the highest predictor of past biomass burning over the past 8 kyr. In temperate forests, biomass burning was high at ∼45 % tree cover and decreased to a minimum at between 60 % and 70 % tree cover. In needleleaf-dominated forests, biomass burning was highest at ∼ 60 %–65 % tree cover and steeply declined at 〉65 % tree cover. Biomass burning also increased when arable lands and grasslands reached ∼ 15 %–20 %, although this relationship was variable depending on land use practice via ignition sources, fuel type and quantities. Higher tree cover reduced the amount of solar radiation reaching the forest floor and could provide moister, more wind-protected microclimates underneath canopies, thereby decreasing fuel flammability. Tree cover at which biomass burning increased appears to be driven by warmer and drier summer conditions during the early Holocene and by increasing human influence on land cover during the late Holocene. We suggest that long-term fire hazard may be effectively reduced through land cover management, given that land cover has controlled fire regimes under the dynamic climates of the Holocene.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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