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Gene Engineering in Endocrinology

235,39 €*

Sofort verfügbar, Lieferzeit: 1-3 Tage

Produktnummer: 1873f5cb5ce8d946b49ccfdc5e0cffdb81
Themengebiete: Gonadotropin glucocorticoid hormone receptors insulin nuclear receptors signaling pathways thyroid hormone
Veröffentlichungsdatum: 09.11.2010
EAN: 9781617371479
Sprache: Englisch
Seitenzahl: 428
Produktart: Kartoniert / Broschiert
Herausgeber: Shupnik, Margaret A.
Verlag: Humana Press
Produktinformationen "Gene Engineering in Endocrinology"
During the past five to ten years, a variety of tools has been developed in the disciplines of both gene engineering, and molecular and structural biology. Some of these advances have permitted scientists not only to identify and characterize genes, but also to target these genes by disruption, thus eliminating their function in living animals, and to det- mine the biological responses to altered gene products. This has particular significance in endocrine systems, in which feedback mechanisms between the hypothalamus, pi- itary, and end organs are critical in normal physiology. Interpretation of the physiological significance, or the site of action of specific molecules in this context, has been difficult prior to transgenic technology. Major advances have occurred specifically in the areas of growth and development, and of reproduction. Coupled with analysis of naturally occurring mutations in humans, the use of transgenic animals and in vitro systems has recently allowed endocrinologists to understand the importance of specific thyroid hormone receptor isoforms in vivo, the molecular basis for generalized resistance to thyroid hormones via mutations in the nuclear receptor, and mechanisms for suppressing gene transcription. Previously designated “orphan rec- tors,” such as steroidogenic factor-1, were demonstrated to have critical roles in dev- opment and reproduction. Other nuclear receptors—including those for thyroid hormone, estrogens, androgens, and progesterone—were shown to bind to coactivator and co- pressor proteins that modified their transcriptional activity, and contributed to the ce- specific effects of the hormones.

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