Endocrine regulatory systems

Two major regulatory systems make important contributions to homeostasis the nervous system and the endocrine system. In order to maintain relatively... 

All the hormones produced by the anterior pituitary except prolactin (PRL) are key participants in hormonal systems in which they regulate the production by peripheral tissues of hormones that perform the ultimate regulatory functions. In these systems, the secretion of the pituitary hormone is under the control of a hypothalamic hormone. Each hypothalamic-pituitary-endocrine gland system or axis provides multiple opportunities for complex neuroendocrine regulation of growth, development, and reproductive functions. 

Our Stolen Future convinced me that we should be much more worried about synthetic chemicals than we generally are. So when I decided to do a PhD in philosophy in 2000, I chose to look at the regulation of chemicals, to see why the regulatory system was so ill equipped to deal with the issues raised by endocrine disruption. I felt that treating chemicals as isolated entities was part of the problem, so my research became an investigation into how we think about and publicly assess technologies, taking synthetic chemicals as an example. This book is the result of that research. 

Leukotrienes and Prostanoids. Arachidonic acid (AA) (213) and its metabohtes are iavolved ia cellular regulatory processes ia all three principal chemical signaling systems endocrine (see Hormones), immune, and neuronal (62). FoUowiag receptor activation or iacreased iatraceUular... 

Vertebrates share many functional similarities in their endocrine systems, including their regulatory control and the nature of the hormones and their receptors (Munkittrick et al. 1998). The reproductive abnormalities observed in wildlife populations may therefore potentially be extrapolated to effects in the reproductive health of human populations, if similar exposures to EDCs occur. 

NORMAN A w (1990) The vitamin D endocrine system in bone , in Pecile, A and de Bernard, B (eds). Bone regulatory factors. New York, Plenum Press. 

The great diversity and amounts of hormones and regulatory molecules secreted by the GIT influence local and systemic functions. As a consequence, phytochemicals that modulate the endocrine functions of the GIT can alter its characteristics and those of other organ systems. 

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