Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Absorption  (2)
  • Carbohydrate-rich diet  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Calcium absorption and the vitamin D3-dependent calcium-binding protein (1971)
    Springer
    Calcified tissue international 7 (1971), S. 93-102 
    Details
    ISSN: 1432-0827
    Keywords: Strontium ; Vitamin D3 ; Calcium ; Absorption ; Bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Des poulets, âgés de 2 semaines, après a voir été soumis pendant 7 jours à un régime pauvre en calcium (0,1%), riche en vitamine D3, à contenu stable en strontium à une concentration équimolaire à 1,2% de calcium, reçoivent à nouveau une alimentation normale. Les graves lésions osseuses, provoquées par le régime au strontium, disparaissent au bout de 3 jours d'alimentation normale. L'inhibition du mécanisme d'absorption intestinal du calcium et l'action inhibitrice initiale du strontium alimentaire sont totalement abolies. Cependant les troubles de la minéralisation ne disparaissent que partiellement.
    Abstract: Zusammenfassung Nachdem normale, 2-wöchige Kücken während 7 Tagen eine calciumarme (0,1%), Vitamin D3-reiche und 2,62% kaltes Strontium (molaraequivalent mit 1,2% Calcium) enthaltende Nahrung erhielten, wurden sie wieder auf normales Futter gesetzt. Die schwere Knochenläsion, die sich durch die Strontiumfütterung entwickelt hatte, bildete sich zu einem großen Teil schon nach 3 Tagen normaler Nahrung wieder zurück. Die Hemmung der Calciumabsorption im Darm, die anfängliche inhibierende Wirkung des Strontiums aus der Nahrung, wurde vollständig aufgehoben; dagegen besserte sich der Mineralisationsdefekt nur teilweise.
    Notes: Abstract Two week old normal chicks, after having been fed a low-calcium (0.1%), vitamin D3-replete diet containing stable strontium at a level equimolar to 1.2% calcium for 7 days, were transferred back to a normal diet. The severe bone lesion that developed with strontium feeding was, to a large extent, reversed after only 3 days on the normal diet. The inhibition of the intestinal calcium absorptive mechanism, the initial inhibitory action of dietary strontium, was fully reversed whereas the recovery from the defect in mineralization was only partially reversed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02062597
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Calcium absorption and the vitamin D3-dependent calcium-binding protein (1971)
    Springer
    Calcified tissue international 7 (1971), S. 81-92 
    Details
    ISSN: 1432-0827
    Keywords: Strontium ; Vitamin D3 ; Calcium ; Absorption ; Bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Des poulets normaux, âgés de 2 semaines, présentent une condition voisine d'une rachitisme grave, lorsqu'on les soumet pendant 7 jours à un régime pauvre en calcium (0,1%), riche en vitamine D3, et contenant une quantité stable de strontium, équimolaire à 1,2% de calcium. Alors que l'on pensait que le rachitisme induit par le strontium était lié à une inhibition directe de la calcification, il apparait qu'avant toute modification osseuse apparente, le strontium inhibe la production du CaPB induit par la vitamine D3, ainsi que le mécanisme d'absorption intestinale du calcium. Il semble que cet effet du strontium soit lié à sa participation dans le mécanisme normal de la régulation du calcium au cours de la synthèse de CaBP.
    Abstract: Zusammenfassung Normale, 2wöchige Kücken gerieten innerhalb von 7 Tagen in einen schweren, rachitisänhlichen Zustand, wenn sie eine calciumarme (0,1%0 und Vitamin D3-reiche Nahrung erhielten, welcher kaltes Strontium in einer Konzentration von 2,62% (molaraequivalent mit 1,2% Calcium) zugesetzt wurde. Während man früher vermutete, daß die “Strontium-Rachitis” nur durch eine direkte Inhibition der Verkalkung entstehe, konnte nun gezeigt werden, daß — bevor eine sichtbare Knochenveränderung eintritt — die Vitamin D3-gesteuerte Bildung von CaBP (calciumbindendes Protein) und gleichzeitig der Mechanismus der Calciumabsorption im Darm durch Strontium gehemmt wird. Die gefundenen Resultate weisen auf die Möglichkeit hin, daß dieser Strontiumeffekt auf dessen Interferenz mit dem normalen Mechanismus der Calciumregulation durch die CaBP-Syntheses zurückgeführt werden kann.
    Notes: Abstract Normal 2-week-old chicks, when fed a low-calcium (0.1%), vitamin D3-replete diet containig stable strontium at a level equimolar to 1.2% calcium, developed a severe rachiticlike condition within 7 days. Whereas formerly it was suspected that “strontium rickets” resulted from direct inhibition of calcification only, it was shown that, preceding any detectable bone change, strontium inhibited vitamin D3-induced CaBP production and, simultaneously, the intestinal calcium absorptive mechanism. The results suggest the possibility that this effect of strontium may be due to its interference with the normal mechanism of calcium regulation of CaBP synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02062596
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Simple and complex carbohydrate-rich diets and muscle glycogen content of marathon runners (1988)
    Springer
    European journal of applied physiology 57 (1988), S. 70-74 
    Details
    ISSN: 1439-6327
    Keywords: Energy metabolism ; Carbohydrate-rich diet ; Glycogen ; Low-carbohydrate diet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of simple-carbohydrate (CHO)- and complex-CHO-rich diets on skeletal muscle glycogen content were compared. Twenty male marathon runners were divided into four equal groups with reference to dietary consumption: depletion/simple, depletion/complex, non-depletion/simple, and nondepletion/complex. Subjects consumed either a low-CHO (15% energy [E] intake), or a mixed diet (50% CHO) for 3 days, immediately followed by a high-CHO diet (70% E intake) predominant in either simple-CHO or in complex-CHO (85% of total CHO intake) for another 3 days. Skeletal muscle biopsies and venous blood samples were obtained one day prior to the start of the low-CHO diet or mixed diet (PRE), and then again one day after the completion of the high-CHO diet (POST). The samples were analysed for skeletal muscle glycogen, serum free fatty acids (FFA), insulin, and lactate and blood glucose. Skeletal muscle glycogen content increased significantly (p〈0.05) only in the nondepletion/simple group. When groups were combined, according to the type of CHO ingested and/or utilization of a depletion diet, significant increases were observed in glycogen content. Serum FFA decreased significantly (p〈0.05) for the nondepletion/complex group only, while serum insulin, blood glucose, and serum lactate were not altered. It is concluded that significant increases in skeletal muscle glycogen content can be achieved with a diet high in simple-CHO or complex-CHO, with or without initial consumption of a low-CHO diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00691241
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Lipoprotein lipase activity in skeletal muscle and adipose tissue of marathon runners after simple and complex carbohydrate-rich diets (1988)
    Springer
    European journal of applied physiology 57 (1988), S. 75-80 
    Details
    ISSN: 1439-6327
    Keywords: Energy metabolism ; Carbohydrate-rich diet ; Lipoprotein lipase ; Free fatty acids ; Insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A comparison of the influence of simple and complex carbohydrate (CHO) consumption on adipose tissue- and skeletal muscle-lipoprotein lipase activity (AT-LPLA, SM-LPLA) was examined. Twenty male marathon runners were divided into two equal dietary groups: simple-CHO and complex-CHO. Half of the subjects in each group consumed either a low-CHO (15% energy [E] intake), or a mixed diet (50% CHO) for 3 days. Immediately following this dietary period, the subjects consumed a CHO-rich diet (70% E intake) predominant in simple-CHO or in complex-CHO for an additional 3 days. Thereafter, all subjects returned to a normal mixed diet. Skeletal muscle biopsies, adipose tissue aspirations, and venous blood samples were obtained prior to dietary manipulation (PRE), upon completion of the 6 day diet (POST I), and 2 weeks after returning to a normal diet (POST II). The samples were analysed for AT-LPLA, SM-LPLA, serum insulin, and free fatty acids (FFA), and blood glucose, and lactate. SM-LPLA fell 71% from PRE values of 0.39±0.30 μ mol · g−1 · h−1 to POST I values of 0.11 ±0.09 μ mol · g−1 · h−1 (means±SD) (p〈0.05), after a complex-CHO diet. However, the simple-CHO diet did not alter SM-LPLA. AT-LPLA similarly decreased (p〈0.05) after the complex-CHO diet, and no significant decrease was noted after the simple-CHO diet. Serum FFA decreased significantly (p〈0.05) after a simple-CHO diet (0.82±0.13 to 0.65±0.10 mmol l−1) but were unchanged after a complex-CHO diet. Blood glucose and lactate, and serum insulin were not altered following a CHO-rich diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00691242
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...