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- W2034969971 abstract "After lactation, there is a massive loss of pituitary lactotrophs. The aim of this study was to investigate the events and mechanisms involved in the remodeling of the anterior pituitary after termination of lactation. Animals were analyzed at day 7 of lactation and at 4 and 7 days after pup removal. Field-inversion gel electrophoresis was used to detect high-molecular-weight DNA fragments, a characteristic feature of apoptosis. Bax and Bcl-2, proteins involved in regulation of cell survival, were studied by immunohistochemistry and Western blot analysis. In addition, the expression of Bax, Bcl-2, Bcl-X(L), and p53 messenger RNA (mRNA) was analyzed by in situ hybridization. Four days after termination of lactation, a peak in high-molecular-weight DNA fragments and an increase in Bax, along with a decrease in Bcl-2 proteins, were observed, in comparison with lactation and with 7 days post lactation. The mRNAs for Bax and p53 also were increased, whereas no changes were detected in Bcl-2 and Bcl-X(L) mRNA levels. In summary, these findings indicate that the cell remodeling of the anterior pituitary, after the termination of lactation, occurs through the process of apoptosis and involves changes in Bax, Bcl-2, and p53." @default.
- W2034969971 created "2016-06-24" @default.
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- W2034969971 date "1998-05-01" @default.
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- W2034969971 title "Termination of Lactation Induces Apoptosis and Alters the Expression of the Bcl-2 Family Members in the Rat Anterior Pituitary1" @default.
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- W2034969971 doi "https://doi.org/10.1210/endo.139.5.5985" @default.
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