Parathyroid hormone-related protein (PTHrP) and blood pressure
Journal of Bone and Mineral Metabolism(1994)
摘要
Parathyroid hormone-related protein (PTHrP) is one of the main factors from tumors causing malignancy associated hypercalcemia.
It is also expressed in various kinds of normal tissues including vascular smooth muscle systems. Colocalization of the PTH/PTHrP
receptor and locally produced PTHrP and its vasorelaxant activities suggest that PTHrP has a regulatory role in the modulation
of blood pressure (BP). There have been many evidences that indicate the importance of circulating PTH and PTH/PTHrP receptors
in the regulation of BP in various conditions. These data suggest that, under normal physiological conditions, locally produced
PTHrP is a real factor that regulates these smooth musele systems in a paracrine or autocrine fashion. The central nervous
system also has a very important role to regulate the BP. The evidence that PTHrP is expressed in the central nervous system
and the presence of the PTHrP immunoreactivity in human cerebrospinal fluid lead to the possibility that PTHrP has some role
in the central regulation of BP. We have found that intraventricularly administered PTHrP had a pressor effect on systemic
BP which support the previous possibility.
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关键词
parathyroid hormone,central regulation,blood pressure,hemo- dynamic system,parathyroid hormone-related protein,dynamic system,central nervous system
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