Central catecholamine pathways in stress reactions
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1 Central catecholamine pathways in stress reactions Palkovits Miklós Semmelweis University, Budapest 2016
2 Selye János ( ) In 1936, when this definition was formulated, we knew of only three objective indicators that could be recognized no matter how stress was produced. these indicators were: - the mobilization of the anterior pituitary-adrenal axis, - the readily observable involution of the thymico-lymphatic system - and the appearance of peptic ulcers. doctor honoris causa at 43 universities 10x nominations for Nobel Prize
3 Cannon WB, Lissak K (1939) Evidence for adrenaline in adrenergic neurons. Am J Physiol 125: Dahlström A, Fuxe K (1964) Evidence of the existence of monoamine containing neurons in the central nervous system. I. Demonstration of monoamines in cell bodies of brain stem neurons. Acta Physiol Scand 62: Hökfelt T, Fuxe K, Goldstein M, Johansson O (1974) Immunohistochemical evidence for the existence of adrenaline neurons in the rat brain. Brain Res 66:
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6 How get stress signals the paraventricular nucleus from the cerebral cortex?
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8 Sarubbo et al., 2013
9 Alm et al., 2015
10 FIGURE 8A Binary masks of all of the nodes (blue) and all of the functionally-defined group probability maps (yellow) in the anterior Salience Network (asn) to show their spatial extents and locations. Figley et al., 2015
11 FIGURE 8B Binary masks of all of the nodes (blue) and all of the functionally-defined group probability maps (yellow) in the posterior Salience Network (psn) to show their spatial extents and locations. Figley et al., 2015
12 anterior cingulate cortex hippocampus amygdala (behavioral responses) paraventricular nucleus (stress responses)
13 How get stress signals the paraventricular nucleus from the periphery?
14 stress signals to the paraventricular nucleus stressor catecholamines A1-A2-A6-C1c-C2 limbic system hypothalamus other transmitters cerebral cortex
15 tractus spinohypothalamicus
16 tractus spinoreticularis ascending reticular activating sysytem
17 signals from the paraventricular nucleus to the periphery
18 A B activation of sympathetic activity, thermogenesis and glucose utilization paraventricular projections to preganglionic parasympathetic neurons (DVN)
19 descending neuronal pathways (premotor sympathetic neurons)
20 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus, ventral cells A5 noradrenaline cell group Rostral C1 adrenaline cell group Medullary serotonin cell groups thoracal spinal cord
21 IMMO 3V paraventricular nucleus
22 Paraventricular projections F 3V
23 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
24 Paraventricular projections to lower brainstem catecholamine neurons
25 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus (caudal part) A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
26 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
27 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
28 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus (caudal part) A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
29 ascending neuronal pathways descending humoral and neuronal pathways stressor catecholamines A1-A2-A6-C1c-C2 limbic system hypothalamus pituitary adrenal P other transmitters cerebral cortex catecholamines A5-A6c-A7-C1r adrenomedullary sympathoneural stress signal routes routes of stress response
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31 Find your own natural stress level and run toward what you accept as your own goal. Granted, this is difficult and takes much time, but too many people suffer all their lives because they are too conservative to risk a radical change and break with tradition. (Selye) Selye s Guide to Stress Research, 1980
32 Köszönöm figyelmüket!
33
34 összefoglaló 1 stressful stimuli 2 projections to the integrative centers 3 HPA axis 4 pituitary-adrenomedullary pathway 5 inputs to descending CA-projection neurons 6 non-aminerg premotor sympathetic fibers 7 aminerg premotor sympathetic fibers 8 sympathetic preganglionic fibers to the adrenal medulla 9 preganglionic sympathetic fibers 10 postganglionic sympathetic fibers
35 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus (caudal part) A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
36 Premotor sympathetic cell groups ( command neurons pattern generators ) Hypothalamic paraventricular nucleus Locus coeruleus (caudal part) A5 noradrenaline cell group C1 adrenaline cell group Medullary serotonin cell groups
37 stress signals stress response catecholamines A1-A2-A6-C1c-C2 limbic system pituitary adrenal stressor other transmitters hypothalamus cerebral cortex catecholamines A5-A6c-A7-C1r sympathetic premotor adrenomedullary sympathoneural P
38 Stress response routes - from the hypothalamus - neurohumoral routes - neuronal routes
39 Stress response routes - from the hypothalamus - neurohumoral routes - neuronal routes
40 CRF-immunoreactive nerve terminals of paraventricular origin on A5 noradrenergic neurons
41 CRF-immunoreactive nerve terminals of paraventricular origin on C1 adrenergic neurons
42 histamine nucleus tuberomamillaris rat human
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44
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Brainstem. By Dr. Bhushan R. Kavimandan
Brainstem By Dr. Bhushan R. Kavimandan Development Ventricles in brainstem Mesencephalon cerebral aqueduct Metencephalon 4 th ventricle Mylencephalon 4 th ventricle Corpus callosum Posterior commissure
Hypothalamus. lies below the hypothalamic sulcus. includes the following ventral surface structures:
Hypothalamus I. Overview The Hypothalamus is a division of the diencephalon. lies within the floor and ventral part of the walls of the third ventricle, functions primarily in the maintenance of homeostasis.
biological psychology, p. 40 The study of the nervous system, especially the brain. neuroscience, p. 40
biological psychology, p. 40 The specialized branch of psychology that studies the relationship between behavior and bodily processes and system; also called biopsychology or psychobiology. neuroscience,