The role of 25-hydroxycholecalciferol-1-hydroxylase in the responses of calcium absorption to the reproductive activity in birds

Montecuccoli, G.; Hurwitz, S.; Cohen, A H; Bär, A.

doi:10.1016/0300-9629(77)90202-x

Cited by 37 publications

(6 citation statements)

References 22 publications

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“…Blahos et al (1987) reported an increase in duodenal and ileal P absorption in broiler chickens fed a low Ca diet for two wk and a smaller, but still significant increase in duodenal but not ileal P absorption in chicks fed a low P diet. The adaptation to P or Ca restriction was believed to be a result of an increased level of circulating 1,25-(OH)2-D3 (Blahos et al, 1987) and duodenal calbindin content (Morrisey & Wasserman, 1971;Montecuccoli et al, 1977). By comparing the duodenal calbindin concentration and its changing pattern with age for 1991 and 2001 strains of broilers, Bar et al (2003) concluded that modern broilers exhibit higher capacity of adaptation to P or Ca deficiency and this capacity remains high for the whole growth period.…”

Section: Early Dietary Adaptationmentioning

confidence: 99%

Nutritional genomics: a practical approach by early life conditioning with dietary phosphorus

Ashwell¹,

Angel

2010

R. Bras. Zootec.

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-The recent technologies that have led to the new field of functional genomics (how the genome of an organism regulates homeostasis and responds to stimuli) are providing a clearer understanding of how organisms interact with their environment and in particular their diet. We are beginning to learn how the diet may have long-term influence on performance and health. A form of epigenetic regulation has been recently described called fetal "programming". Fueled by epidemiological data the "fetal origins" hypothesis suggests that a poor in utero environment resulting from maternal dietary or placental insufficiency may "program" susceptibility in the fetus to cardiovascular or metabolic disorders. We have observed similar apparent programming by dietary manipulation in the chicken. When birds are challenged with a diet low in phosphorus (P) for 90 hours post-hatch they obtain the ability to better utilize P later in life. This increased retention of P from the diet can partially be explained by an enduring increase in the expression of the intestine-specific Na/P cotransporter (NaPcoT) gene during programming as well as later in life when fed P restricted diets. The resulting data provide the first evidence for neonatal programming of gene expression in an oviparous species.Key Words: epigenetics, functional genoimcs, nutrition, nutritional conditioning, poultry Genômica nutricional: uma abordagem prática pelo condicionamento com fósforo dietético nos primeiros anos de vida RESUMO -As tecnologias recentes que levaram ao novo campo da genômica funcional (como o genoma de um organismo regula a homeostase e responde aos estímulos) estão proporcionando uma compreensão mais clara de como os organismos interagem com seu ambiente e em especial a sua dieta. Nós estamos começando a aprender como a dieta pode ter influência a longo prazo sobre o desempenho e a saúde. Uma forma de regulação epigenética foi descrita recentemente chamada de "programação fetal". Alimentados por dados epidemiológicos da "origem fetal" hipótese sugere que um pobre no útero ambiente decorrentes da insuficiência alimentar ou placentária materna pode programar "suscetibilidade do feto de doenças cardiovasculares ou metabólicas. Tem-se observado programação aparente similar por manipulação dietética da galinha. Quando as aves são desafiadas com uma dieta baixa em fósforo (P) por 90 horas pós-eclosão, elas obtêm a capacidade de utilizar P melhor mais tarde na vida. Esta maior retenção de P da dieta pode ser parcialmente explicada por um aumento permanente na expressão do gene do cotransoprtador Na/P intestinal durante a programação, bem como mais tarde na vida quando alimentadas com dietas P restrito. Os dados obtidos fornecem a primeira evidência para a programação neonatal da expressão gênica em uma espécie ovípara.

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Section: Early Dietary Adaptationmentioning

confidence: 99%

Nutritional genomics: a practical approach by early life conditioning with dietary phosphorus

Ashwell¹,

Angel

2010

R. Bras. Zootec.

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“…They then demonstrated that diffusion was the most probable mechanism for the entry of Ca ++ into the intestinal mucosa (Bar and Hurwitz, 1969). The short-term regulation of intestinal calcium absorption has been shown to be independent of duodenal calcium-binding protein (Bar and Hurwitz, 1972) and of the renal activity of 25-hydroxycholecalciferol-l-hydroxylase (Montecuccoli et al, 1977). More recently, Mongin (1976b) and Mongin (1980, 1982) (Mongin and Sauveur, 1979 …”

mentioning

confidence: 99%

Plasma inorganic phosphorus concentration during eggshell formation. II. — Inverse relationships with intestinal calcium content and eggshell weight

Sauveur¹,

Mongin²,

Antoine³

1983

Reprod. Nutr. Dévelop.

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“…One presumed exception was from studies with the laying hen and laying Japanese quail. In both of these species, it was noted that the absorption of calcium was greater during the period when the eggshell was undergoing calcification than when no eggshell was being formed; however, the amount of CaBP in the intestinal mucosa did not change correspondingly (2)(3)(4). It was proposed by Bar, Hurwitz, and colleagues (2)(3)(4) that there exists in the laying bird a rapidly modulating calcium transport mechanism not associated with CaBP.…”

mentioning

confidence: 89%

Relation of Vitamin D-Dependent Intestinal Calcium-Binding Protein to Calcium Absorption during the Ovulatory Cycle in Japanese Quail

Wasserman

Combs

1978

Experimental Biology and Medicine

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The role of 25-hydroxycholecalciferol-1-hydroxylase in the responses of calcium absorption to the reproductive activity in birds

Cited by 37 publications

References 22 publications

Nutritional genomics: a practical approach by early life conditioning with dietary phosphorus

Nutritional genomics: a practical approach by early life conditioning with dietary phosphorus

Plasma inorganic phosphorus concentration during eggshell formation. II. — Inverse relationships with intestinal calcium content and eggshell weight

Relation of Vitamin D-Dependent Intestinal Calcium-Binding Protein to Calcium Absorption during the Ovulatory Cycle in Japanese Quail

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