Raphe pallidus and parapyramidal neurons regulate ear pinna vascular conductance in the rabbit

Neuroscience Letters

Volumn 270, Issue 1, 1999, Pages 33-36

  Blessing, W W ^a   Yu, Y H ^a   Nalivaiko, E ^a  

^a FLINDERS UNIVERSITY   (Australia)

Author keywords

Cutaneous blood flow; GABA; Parapyramidal region; Presympathetic motoneurons; Raphe pallidus; Sympathetic nerves; Tetrodotoxin

Indexed keywords

4 AMINOBUTYRIC ACID; SEROTONIN; TETRODOTOXIN;

ANIMAL CELL; ANIMAL EXPERIMENT; ARTERIAL PRESSURE; ARTICLE; BLOOD FLOW; CONTROLLED STUDY; DOPPLER ECHOGRAPHY; EAR LOBE; ELECTROSTIMULATION; MALE; MEDULLA OBLONGATA; NERVE PROJECTION; NONHUMAN; PRIORITY JOURNAL; PYRAMIDAL NERVE CELL; RABBIT; RAPHE NUCLEUS; SUPERIOR MESENTERIC ARTERY;

ANIMALS; BLOOD PRESSURE; EAR, EXTERNAL; ELECTRIC STIMULATION; GAMMA-AMINOBUTYRIC ACID; MALE; MEDULLA OBLONGATA; NEURONS; PYRAMIDAL CELLS; RABBITS; RAPHE NUCLEI; REGIONAL BLOOD FLOW; SPLANCHNIC CIRCULATION; ULTRASONOGRAPHY, DOPPLER;

EID: 0033597979     PISSN: 03043940     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0304-3940(99)00459-0     Document Type: Article

References (20)

1. Dampney R.A.L., McAllen R.M. Differential control of sympathetic fibres supplying hindlimb skin and muscle by subretrofacial neurones in the cat. J. Physiol. (Lond.). 395:1988;41-56.
2. Grant R.T. Further observations on the vessels and nerves of the rabbit's ear, with special reference to the effects of denervation. Clin. Sci. 2:1935;1-33.
3. Haselton J.R., Winters R.W., Liskowsky D.R., Haselton C.L., McCabe P.M., Schneiderman N. Cardiovascular responses elicited by electrical and chemical stimulation of the rostral medullary raphe of the rabbit. Brain Res. 453:1988;167-175.
4. Haselton J.R., Winters R.W., Liskowsky D.R., Haselton C.L., McCabe P.M., Schneiderman N. Anatomical and functional connections of neurons of the rostral medullary raphe of the rabbit. Brain Res. 453:1988;176-182.
5. Howe P.R.C., Moon E.A., Dampney R.A.L. Distribution of serotonin nerve cells in the rabbit brainstem. Neurosci. Lett. 38:1983;125-130.
6. Jensen I., Llewellyn-Smith I.J., Pilowsky P., Minson J.B., Chalmers J. Serotonin inputs to rabbit sympathetic preganglionic neurons projecting to the superior cervical ganglion or adrenal medulla. J. Comp. Neurol. 353:1995;427-438.
7. Johnson C.D., Gilbey M.P. Sympathetic activity recorded from the rat caudal ventral artery in vivo. J. Physiol. (Lond.). 476:1994;437-442.
8. Jänig W., McLachlan E.M. Characteristics of function-specific pathways in the sympathetic nervous system. Trends Neurosci. 15:1992;475-481.
9. Loewy A.D. Raphe pallidus and raphe obscurus projections to the intermediolateral cell column in the rat. Brain Res. 222:1981;129-133.
10. McAllen R.M., May C.N. Differential drives from rostral ventrolateral medullary neurons to three identified sympathetic outflows. Am. J. Physiol. 267:1994;R935-R944.
11. Morrison S.F., Sved A.F., Passerin A.M. GABA-mediated inhibition of raphe pallidus neurons regulates sympathetic outflow to brown adipose tissue. Am. J Physiol. 276:1999;R290-R297.
12. Nalivaiko, E.D., Yu, Y.H. and Blessing, W.W., Raphe pallidus controls skin blood flow in rabbits. Soc. Neurosci. Abstr., 25 (1999) in press.
13. Ootsuka Y., Terui N. Functionally different neurons are organized topographically in the rostral ventrolateral medulla of rabbits. J. Auton. Nerv. Syst. 67:1997;67-78.
14. Rathner, J.A. and McAllen, R.M., Differential control of sympathetic drive to the rat tail artery and kidney by medullary premotor groups. Brain Res., (1999) in press.
15. Smith J.E., Jansen A.S., Gilbey M.P., Loewy A.D. CNS cell groups projecting to sympathetic outflow of tail artery: neural circuits involved in heat loss in the rat. Brain Res. 786:1998;153-164.
16. Wallin B.G., Fagius J. Peripheral sympathetic neural activity in conscious humans. Annu. Rev. Physiol. 50:1988;565-576.
17. White S.W., Traugott F.M., Quail A.W. Central nervous system 5-hydroxytryptamine and noradrenaline specificity of ear vascular and ventilation reflexes in thermoregulating rabbits. J. Auton. Nerv. Syst. 12:1985;131-144.
18. Yu Y.H., Blessing W.W. Cutaneous vasoconstriction in conscious rabbits during alerting responses detected by hippocampal theta-rhythm. Am. J. Physiol. 272:1987;R208-R216.
19. Yu Y.H., Blessing W.W. Constriction of the ear pinna vascular bed accompanies the trigeminal depressor response in rabbits. Neurosci. Lett. 255:1998;172-174.
20. Yu, Y.H. and Blessing, W.W., Amygdala coordinates sudden falls in ear pinna flow in response to unconditioned salient stimuli in conscious rabbits. Neuroscience, (1999) in press.