The Experts below are selected from a list of 2481 Experts worldwide ranked by ideXlab platform
Rocío Espinosa - One of the best experts on this subject based on the ideXlab platform.
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Whey protein/casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum.
Journal of pediatric gastroenterology and nutrition, 1998Co-Authors: Vı́ctor Manuel Sánchez-hidalgo, Samuel Flores-huerta, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
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whey protein casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum
Journal of Pediatric Gastroenterology and Nutrition, 1998Co-Authors: Victor Manuel Sanchezhidalgo, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Samuel Floreshuerta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
Guadalupe Matute - One of the best experts on this subject based on the ideXlab platform.
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Whey protein/casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum.
Journal of pediatric gastroenterology and nutrition, 1998Co-Authors: Vı́ctor Manuel Sánchez-hidalgo, Samuel Flores-huerta, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
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whey protein casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum
Journal of Pediatric Gastroenterology and Nutrition, 1998Co-Authors: Victor Manuel Sanchezhidalgo, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Samuel Floreshuerta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
Claudia Serrano - One of the best experts on this subject based on the ideXlab platform.
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Whey protein/casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum.
Journal of pediatric gastroenterology and nutrition, 1998Co-Authors: Vı́ctor Manuel Sánchez-hidalgo, Samuel Flores-huerta, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
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whey protein casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum
Journal of Pediatric Gastroenterology and Nutrition, 1998Co-Authors: Victor Manuel Sanchezhidalgo, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Samuel Floreshuerta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
Bárbara Urquieta - One of the best experts on this subject based on the ideXlab platform.
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Whey protein/casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum.
Journal of pediatric gastroenterology and nutrition, 1998Co-Authors: Vı́ctor Manuel Sánchez-hidalgo, Samuel Flores-huerta, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
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whey protein casein ratio and Nonprotein Nitrogen in preterm human milk during the first 10 days postpartum
Journal of Pediatric Gastroenterology and Nutrition, 1998Co-Authors: Victor Manuel Sanchezhidalgo, Guadalupe Matute, Claudia Serrano, Bárbara Urquieta, Samuel Floreshuerta, Rocío EspinosaAbstract:Background: This study was designed to describe the longitudinal changes in the casein and whey fractions and the total and Nonprotein Nitrogen contents of preterm human milk for the first 10 days postpartum. Methods: Eleven mothers delivering at 30 to 34 weeks of gestation were studied, six throughout the first 10 days and five on the first postpartum day . Four milk samples were collected every day by expression of one breast with an electric breast pump. Casein and whey protein were separated from the defatted milk by isoelectric precipitation in calcium chloride and by subsequent ultracentrifugation. The milk Nitrogen content was determined before and after acid precipitation. Whey protein and casein were characterized by electrophoresis in polyacrylamide gel. Results: Total and protein Nitrogen showed a sharp decrease during the first 3 postpartum days, whereas the Nonprotein Nitrogen did not change markedly (mean concentration. 0.58 mg.ml -1 ). Casein content expressed as Nitrogen in preterm human milk was 0.35 mg.ml -1 between days 3 and 5 and 0.60 mg.ml -1 between days 6 and 10. The whey protein-casein ratio before day 2, was 100:0, at day 3, 86:14, at day 5, 76:24. and at day 1(), 70:30. Three days after delivery, casein levels rose progressively, increasing markedly alter day 6. Conclusions: These findings suggest that delivering before term affects neither casein production nor its chemical characteristics.
G.w. Ivie - One of the best experts on this subject based on the ideXlab platform.
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Influence of Dietary Calcium on Chlordecone-Induced Biochemical Changes in Serum of Rat
Ecotoxicology and environmental safety, 1993Co-Authors: Kothapa N. Chetty, J. Walker, K. Brown, G.w. IvieAbstract:Male, Sprague-Dawley rats were treated with different (1, 10, 50, and 100 ppm) concentrations of chlordecone (Cd) in calcium-sufficient (Ca-S) or calcium-deficient (Ca-D) diet for 15 days. No significant changes in serum total proteins were observed. However, serum Nonprotein Nitrogen compounds (urea, uric acid, and creatinine) and glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, creatine kinase, and alkaline phosphatase were significantly increased at 50 and 100 ppm of Cd. Chlordecone induced more increase in these serum components of rats fed with Ca-D as compared to Ca-S diet. Increased serum Nonprotein Nitrogen compounds and enzymes indicate Cd-altered glomerular and hepatic functions.
