In vitro effects of cadmium and lead on ATPases in the gill of the rock crab,Cancer irroratus

Calcium-cadmium interaction on L-threonine intestinal transport

“…With the intention of studying the cad- (Foulkes, 1991 Cadmium is highly reactive with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990 (Ohnishi and Ito, 1974;Jacobson and Papahadjopouos, 1975). Similar effects were reported for phosphatidic acid head groups (Trauble and Eibl, 1974;Hartmann ef al, 1977 (Sorensen, 1988) and involvement of Ca 2+ channels in Cd 2+ uptake has also been suggested in these cells (Blazka and Shaikh, 1991 …”

“…These (Sorensen et al, 1985;Kunimoto et al, 1986). This metal readily reacts with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990). In agreement with earlier observations reported in the literature, we have observed that the cadmium effect is due to impairment of the active transport mechanism, which could be altered by interaction with sulphydryl groups linked to the transport systems and (Na + /K + )-ATPase (Rodriguez-Yoldi etal, 1989, 1993Mesonero etal, 1993aMesonero etal, ,b, 1994 (Larsson and Piscator, 1971;Itokawa et al, 1973Itokawa et al, , 1974Cousins, 1975, 1977 (Lebas, 1987;Moughan et al, 1988;Schultze et al, 1988 The experiments were carried out with rings of rabbit everted jejunum weighing about 100 mg which were incubated at 37°C in 10 ml incubation solution containing 0.01 pCi/ml L -[U-14 C]threonine plus unlabelled 0.5 mM L -threonine for 3 or 20 min.…”

Calcium-cadmium interaction on L-threonine intestinal transport

“…With the intention of studying the cad- (Foulkes, 1991 Cadmium is highly reactive with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990 (Ohnishi and Ito, 1974;Jacobson and Papahadjopouos, 1975). Similar effects were reported for phosphatidic acid head groups (Trauble and Eibl, 1974;Hartmann ef al, 1977 (Sorensen, 1988) and involvement of Ca 2+ channels in Cd 2+ uptake has also been suggested in these cells (Blazka and Shaikh, 1991 …”

“…These (Sorensen et al, 1985;Kunimoto et al, 1986). This metal readily reacts with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990). In agreement with earlier observations reported in the literature, we have observed that the cadmium effect is due to impairment of the active transport mechanism, which could be altered by interaction with sulphydryl groups linked to the transport systems and (Na + /K + )-ATPase (Rodriguez-Yoldi etal, 1989, 1993Mesonero etal, 1993aMesonero etal, ,b, 1994 (Larsson and Piscator, 1971;Itokawa et al, 1973Itokawa et al, , 1974Cousins, 1975, 1977 (Lebas, 1987;Moughan et al, 1988;Schultze et al, 1988 The experiments were carried out with rings of rabbit everted jejunum weighing about 100 mg which were incubated at 37°C in 10 ml incubation solution containing 0.01 pCi/ml L -[U-14 C]threonine plus unlabelled 0.5 mM L -threonine for 3 or 20 min.…”

Cadmium action on aminopeptidase N activity and L-threonine intestinal transport in rabbit

“…It has been reported that cadmium inhibits the D -galactose, D -glucose, L -phenylalanine and L -histidine absorption across the rat and rabbit small intestine (Bevan and Foulkes, 1989;Kojima et al, 1986;Rodriguez-Yoldi et al, 1989;Mesonero et al, 1993) and the L -alanine, proline and L -lysine transport into renal brush-border membrane vesicles isolated from the winter flounder (Bevan et al, 1989) and rat (Kim et al, 1990 (Jacobson and Turner, 1980;Tuker and Matte, 1980). Indeed, SH-groups in the Na+/K-!…”

Calcium-Lead Interactions Involving Earthworms: An Hypothesis

“……”

Calcium-cadmium interaction on L-threonine intestinal transport

“…With the intention of studying the cad- (Foulkes, 1991 Cadmium is highly reactive with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990 (Ohnishi and Ito, 1974;Jacobson and Papahadjopouos, 1975). Similar effects were reported for phosphatidic acid head groups (Trauble and Eibl, 1974;Hartmann ef al, 1977 (Sorensen, 1988) and involvement of Ca 2+ channels in Cd 2+ uptake has also been suggested in these cells (Blazka and Shaikh, 1991 …”

“…These (Sorensen et al, 1985;Kunimoto et al, 1986). This metal readily reacts with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990). In agreement with earlier observations reported in the literature, we have observed that the cadmium effect is due to impairment of the active transport mechanism, which could be altered by interaction with sulphydryl groups linked to the transport systems and (Na + /K + )-ATPase (Rodriguez-Yoldi etal, 1989, 1993Mesonero etal, 1993aMesonero etal, ,b, 1994 (Larsson and Piscator, 1971;Itokawa et al, 1973Itokawa et al, , 1974Cousins, 1975, 1977 (Lebas, 1987;Moughan et al, 1988;Schultze et al, 1988 The experiments were carried out with rings of rabbit everted jejunum weighing about 100 mg which were incubated at 37°C in 10 ml incubation solution containing 0.01 pCi/ml L -[U-14 C]threonine plus unlabelled 0.5 mM L -threonine for 3 or 20 min.…”

Cadmium action on aminopeptidase N activity and L-threonine intestinal transport in rabbit

“…It has been reported that cadmium inhibits the D -galactose, D -glucose, L -phenylalanine and L -histidine absorption across the rat and rabbit small intestine (Bevan and Foulkes, 1989;Kojima et al, 1986;Rodriguez-Yoldi et al, 1989;Mesonero et al, 1993) and the L -alanine, proline and L -lysine transport into renal brush-border membrane vesicles isolated from the winter flounder (Bevan et al, 1989) and rat (Kim et al, 1990 (Jacobson and Turner, 1980;Tuker and Matte, 1980). Indeed, SH-groups in the Na+/K-!…”

Calcium-Lead Interactions Involving Earthworms: An Hypothesis

“……”

Calcium-cadmium interaction on L-threonine intestinal transport

“…With the intention of studying the cad- (Foulkes, 1991 Cadmium is highly reactive with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990 (Ohnishi and Ito, 1974;Jacobson and Papahadjopouos, 1975). Similar effects were reported for phosphatidic acid head groups (Trauble and Eibl, 1974;Hartmann ef al, 1977 (Sorensen, 1988) and involvement of Ca 2+ channels in Cd 2+ uptake has also been suggested in these cells (Blazka and Shaikh, 1991 …”

“…These (Sorensen et al, 1985;Kunimoto et al, 1986). This metal readily reacts with thiol groups of proteins (Jacobson and Turner, 1980;Tuker and Matte, 1980;Templeton, 1990). In agreement with earlier observations reported in the literature, we have observed that the cadmium effect is due to impairment of the active transport mechanism, which could be altered by interaction with sulphydryl groups linked to the transport systems and (Na + /K + )-ATPase (Rodriguez-Yoldi etal, 1989, 1993Mesonero etal, 1993aMesonero etal, ,b, 1994 (Larsson and Piscator, 1971;Itokawa et al, 1973Itokawa et al, , 1974Cousins, 1975, 1977 (Lebas, 1987;Moughan et al, 1988;Schultze et al, 1988 The experiments were carried out with rings of rabbit everted jejunum weighing about 100 mg which were incubated at 37°C in 10 ml incubation solution containing 0.01 pCi/ml L -[U-14 C]threonine plus unlabelled 0.5 mM L -threonine for 3 or 20 min.…”

Cadmium action on aminopeptidase N activity and L-threonine intestinal transport in rabbit

“…It has been reported that cadmium inhibits the D -galactose, D -glucose, L -phenylalanine and L -histidine absorption across the rat and rabbit small intestine (Bevan and Foulkes, 1989;Kojima et al, 1986;Rodriguez-Yoldi et al, 1989;Mesonero et al, 1993) and the L -alanine, proline and L -lysine transport into renal brush-border membrane vesicles isolated from the winter flounder (Bevan et al, 1989) and rat (Kim et al, 1990 (Jacobson and Turner, 1980;Tuker and Matte, 1980). Indeed, SH-groups in the Na+/K-!…”

Calcium-Lead Interactions Involving Earthworms: An Hypothesis

“……”