Modulation of Na and Cl transport by mineralocorticoids

Effect of dehydration on apical Na + -H + exchange activity and Na + -dependent sugar transport in brush-border membrane vesicles isolated from chick intestine

“…In birds intestinal Na + transport is affected by the NaCl content of the diet (see [6] for a review). Since Na + depletion increases plasma aldosterone levels, aldosterone was established as the main physiological regulator of colonic Na + transport [19].…”

“…In the colon of chicks adapted to a low-Na + diet the Na + -hexose/amino acid cotransport systems are replaced by an electrogenic amiloride-inhibitable Na + transport mechanism (see [6] for a review). Recently we have reported [20] that dietary Na + depletion decreases apical Na + -sugar cotransport activity and increases apical Na + /H + exchange activity in the chick colon.…”

Effect of dehydration on apical Na + -H + exchange activity and Na + -dependent sugar transport in brush-border membrane vesicles isolated from chick intestine

“…In birds intestinal Na + transport is affected by the NaCl content of the diet (see [6] for a review). Since Na + depletion increases plasma aldosterone levels, aldosterone was established as the main physiological regulator of colonic Na + transport [19].…”

“…In the colon of chicks adapted to a low-Na + diet the Na + -hexose/amino acid cotransport systems are replaced by an electrogenic amiloride-inhibitable Na + transport mechanism (see [6] for a review). Recently we have reported [20] that dietary Na + depletion decreases apical Na + -sugar cotransport activity and increases apical Na + /H + exchange activity in the chick colon.…”

Metabolism of Corticosterone in Mammalian and Avian Intestine

“…The rats received a standard diet containing 126 µequiv Na ϩ /g diet, guinea pigs were fed green feed, and hens cereal grains (wheat and barley) for 10 days before the experiment and all animals had free access to distilled water. It has been demonstrated previously that hens and guinea pigs fed these diets possess electrogenic amiloridesensitive Na ϩ transport in the large intestine (Clauss et al, 1985;Clauss and Skadhauge, 1988), whereas rats do not (Pácha and Pohlová, 1995).…”

“…Phenomena similar to those in the rat were observed in the lower intestine of seed-eating birds such as the domestic fowl. Colonic Na ϩ transport in hens is electrogenic and amiloridesensitive, but increasing dietary Na ϩ intake abolishes electrogenic Na ϩ transport and induces Na ϩ -hexoses and Na ϩ -amino acid cotransport systems (Clauss and Skadhauge, 1988).…”

Comparative Physiology of Colonic Electrolyte Transport

“…Alternatively, neuroendocrine regulation of ion transport could conceivably control this activity. For example, the colon of the rabbit displays similar cyclic variations in fluid absorption, and these correlate with cyclic variations in plasma aldosterone (25). However, these diurnal changes in the rabbit appear to be initiated by a clock mechanism in the central nervous system, whereas in the pony they are initiated solely by the meal.…”

Effect of dehydration on apical Na + -H + exchange activity and Na + -dependent sugar transport in brush-border membrane vesicles isolated from chick intestine

“…In birds intestinal Na + transport is affected by the NaCl content of the diet (see [6] for a review). Since Na + depletion increases plasma aldosterone levels, aldosterone was established as the main physiological regulator of colonic Na + transport [19].…”

“…In the colon of chicks adapted to a low-Na + diet the Na + -hexose/amino acid cotransport systems are replaced by an electrogenic amiloride-inhibitable Na + transport mechanism (see [6] for a review). Recently we have reported [20] that dietary Na + depletion decreases apical Na + -sugar cotransport activity and increases apical Na + /H + exchange activity in the chick colon.…”

Metabolism of Corticosterone in Mammalian and Avian Intestine

“…The rats received a standard diet containing 126 µequiv Na ϩ /g diet, guinea pigs were fed green feed, and hens cereal grains (wheat and barley) for 10 days before the experiment and all animals had free access to distilled water. It has been demonstrated previously that hens and guinea pigs fed these diets possess electrogenic amiloridesensitive Na ϩ transport in the large intestine (Clauss et al, 1985;Clauss and Skadhauge, 1988), whereas rats do not (Pácha and Pohlová, 1995).…”

“…Phenomena similar to those in the rat were observed in the lower intestine of seed-eating birds such as the domestic fowl. Colonic Na ϩ transport in hens is electrogenic and amiloridesensitive, but increasing dietary Na ϩ intake abolishes electrogenic Na ϩ transport and induces Na ϩ -hexoses and Na ϩ -amino acid cotransport systems (Clauss and Skadhauge, 1988).…”

Comparative Physiology of Colonic Electrolyte Transport

“…Alternatively, neuroendocrine regulation of ion transport could conceivably control this activity. For example, the colon of the rabbit displays similar cyclic variations in fluid absorption, and these correlate with cyclic variations in plasma aldosterone (25). However, these diurnal changes in the rabbit appear to be initiated by a clock mechanism in the central nervous system, whereas in the pony they are initiated solely by the meal.…”

Effect of dehydration on apical Na + -H + exchange activity and Na + -dependent sugar transport in brush-border membrane vesicles isolated from chick intestine

“…In birds intestinal Na + transport is affected by the NaCl content of the diet (see [6] for a review). Since Na + depletion increases plasma aldosterone levels, aldosterone was established as the main physiological regulator of colonic Na + transport [19].…”

“…In the colon of chicks adapted to a low-Na + diet the Na + -hexose/amino acid cotransport systems are replaced by an electrogenic amiloride-inhibitable Na + transport mechanism (see [6] for a review). Recently we have reported [20] that dietary Na + depletion decreases apical Na + -sugar cotransport activity and increases apical Na + /H + exchange activity in the chick colon.…”

Metabolism of Corticosterone in Mammalian and Avian Intestine

“…The rats received a standard diet containing 126 µequiv Na ϩ /g diet, guinea pigs were fed green feed, and hens cereal grains (wheat and barley) for 10 days before the experiment and all animals had free access to distilled water. It has been demonstrated previously that hens and guinea pigs fed these diets possess electrogenic amiloridesensitive Na ϩ transport in the large intestine (Clauss et al, 1985;Clauss and Skadhauge, 1988), whereas rats do not (Pácha and Pohlová, 1995).…”

“…Phenomena similar to those in the rat were observed in the lower intestine of seed-eating birds such as the domestic fowl. Colonic Na ϩ transport in hens is electrogenic and amiloridesensitive, but increasing dietary Na ϩ intake abolishes electrogenic Na ϩ transport and induces Na ϩ -hexoses and Na ϩ -amino acid cotransport systems (Clauss and Skadhauge, 1988).…”

Comparative Physiology of Colonic Electrolyte Transport

“…Alternatively, neuroendocrine regulation of ion transport could conceivably control this activity. For example, the colon of the rabbit displays similar cyclic variations in fluid absorption, and these correlate with cyclic variations in plasma aldosterone (25). However, these diurnal changes in the rabbit appear to be initiated by a clock mechanism in the central nervous system, whereas in the pony they are initiated solely by the meal.…”