Induction of chick embryonic intestinal disaccharidases by hydrocortisone and sucrose in the organ culture system.

Yoshizawa, Satoko; Moriuchi, Sachiko; Hosoya, Norimasa

doi:10.3177/jnsv.23.227

Cited by 21 publications

(5 citation statements)

References 16 publications

(12 reference statements)

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“…Chicken is now to be added to the list. (18,19); both increased rapidly around the period of hatching. The difference in the time of spurt between CRBP(II) and disaccharidases might suggest that the induction of CRBP(II) and disaccharidases is triggered by different humoral and/or dietary factor(s).…”

Section: Discussionmentioning

confidence: 96%

Purification, properties, and developmental chages of cellular retinol-binding protein, Type II, in chicken intestine.

Goda

Takase

1989

Journal of Nutritional Science and Vitaminology, J Nutr Sci Vit

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SummaryTwo distinct cellular retinol-binding proteins were detected in chicken small intestine. A predominant form was purified to homogeneity. The apparent molecular weight of this protein was estimated to be 17,200. This form was larger than a second minor form partially purified (molecular weight of 15,000). The absorption and fluorescence spectra of the bound retinol to the purified proteins were typical for the known cellular retinol-binding proteins. The results suggest that the purified binding protein corresponds to CRBP(II), previously identified in small intestine of rats and humans. To gain an insight into the possible role of CRBP(II) in chicken small intestine, the CRBP(II) contents in cytosols of small intestine of embryonic and post-hatch chicks were determined by enzyme-linked immunosorbent assay. The amount of CRBP(II) per unit DNA in small intestine was low at 15-and 17-day embryonic stage, but rapidly increased around the period of hatching. The increased level was still maintained in 6-week-old chicks, which accounted for 0.9% of total proteins in duodenum. The developmental pattern and the presence of abundant amount of CRBP(II) in chicken small intestine supports the hypothesis that CRBP(II) might play some role in the intestinal absorption of retinoids. Thus the involvement of a tissue-specific cellular retinol-binding protein in the intestinal absorption of retinoids appears to be common in mammalian and avian species.

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Section: Discussionmentioning

confidence: 96%

Purification, properties, and developmental chages of cellular retinol-binding protein, Type II, in chicken intestine.

Goda

Takase

1989

Journal of Nutritional Science and Vitaminology, J Nutr Sci Vit

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“…For instance, in adult humans [24] and rats [3,14,23] the activities of sucrase and maltase were stimu lated by diets enriched either in glucose, fruc tose or sucrose. Furthermore, a stimulation of both enzymes by dietary carbohydrates has been demonstrated in vitro in the 20-day-old chick embryonic intestine after addition of sucrose in the culture medium [26]. Such a stimulatory effect was, however, not ob served on cultured adult mouse intestine when fructose was added to the culture me dium [2].…”

Section: Discussionmentioning

confidence: 99%

Comparative in vivo and in vitro Effect of Mono- and Disaccharides on Intestinal Brush Border Enzyme Activities in Suckling Rats

Raul¹,

Kédinger²,

Simon³

et al. 1981

Neonatology

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Suckling rats were bottle fed during 48 h with a basic diet enriched with different mono- or disaccharides. In parallel, explants of intestinal mucosa were cultured in vitro for 48 h in the presence or in the absence of a synthetic glucocorticoid (dexamethasone) and with or without different carbohydrates. In both studies, enzyme activities were assayed on purified brush border membranes. From these combined in vivo and in vitro investigations it appeared that (1) there is a highly specific stimulation of mono- and disaccharides on the corresponding brush border disaccharidases: glucose, fructose, sucrose on sucrase and maltase activities, fructose being generally the most potent activator. Other brush border enzymes were not modified by the dietary carbohydrates. (2) These sugar-mediated effects were obtained only in the presence of glucocorticoids. This hormone alone induced the appearance of a slight sucrase activity and provoked a stimulation of maltase activity. The results show clearly that glucocorticoids are necessary to induce sucrase activity, but that the level of this activity is under the strict dependence of the dietary carbohydrates.

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“…Organ culture is a useful model for the study of the factors that may influence differentiation of the fetal small intestine directly. This ill vitro system has already been applied successfully to chick embryonic intestine for the study of calcium absorptive mechanisms and their regulation (27), as well as to morphological and enzymatic regulation by hormones and substrates (28)(29)(30)(31)(32)(33). In the fetal rat or mouse intestine, this technique allowed the study of morphological maturation in different culture conditions (\ 9,34,35).…”

Section: Discussionmentioning

confidence: 99%

Control of Brush Border Enzymes by Dexamethasone in the Fetal Rat Intestine Cultured In Vitro

Simon‐Assmann,

Kedinger,

Grenier

et al. 1982

J. pediatr. gastroenterol. nutr.

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Induction of chick embryonic intestinal disaccharidases by hydrocortisone and sucrose in the organ culture system.

Cited by 21 publications

References 16 publications

Purification, properties, and developmental chages of cellular retinol-binding protein, Type II, in chicken intestine.

Purification, properties, and developmental chages of cellular retinol-binding protein, Type II, in chicken intestine.

Comparative in vivo and in vitro Effect of Mono- and Disaccharides on Intestinal Brush Border Enzyme Activities in Suckling Rats

Control of Brush Border Enzymes by Dexamethasone in the Fetal Rat Intestine Cultured In Vitro

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