M. J. Parkes

Some effects of hypophysectomy and hormone replacement on fetal sheep. (1983)

Parkes, M. J.

Thesis (Ph. D.)--University of Oxford, 1983.

Cardiovascular and respiratory effects of stimulation of cell bodies of the parabrachial nuclei in the anaesthetized rat.

Lara, J P, Parkes, M J, Silva-Carvhalo, L, Izzo, P, Dawid-Milner, M S, Spyer, K M

1. In order to assess the importance of the parabrachial nuclei in modulating cardiorespiratory activity, electric current or microinjections of glutamate were used to stimulate discrete regions of...

Responses of ventral respiratory neurones in the rat to vagus stimulation and the functional division of expiration.

Parkes, M J, Lara-Muñoz, J P, Izzo, P N, Spyer, K M

In anaesthetized rats, extracellular and intracellular recordings were taken from 106 respiratory neurones in the intermediate region of the nucleus ambiguus. We observed unprovoked shortening of...

Stimulation of breathing movements by L-5-hydroxytryptophan in fetal sheep during normoxia and hypoxia.

Fletcher, D J, Hanson, M A, Moore, P J, Nijhuis, J G, Parkes, M J

1. In fetal lambs in late gestation, systemic infusion of L-5-hydroxytryptophan (L-5-HTP) during normoxia greatly increases the incidence of fetal breathing movements (FBM) and high-voltage...

Effects of pilocarpine on breathing movements in normal, chemodenervated and brain stem-transected fetal sheep.

Hanson, M A, Moore, P J, Nijhuis, J G, Parkes, M J

1. We examined the effects on fetal breathing movements (FBM) and electrocortical activity (ECoG) of the administration of pilocarpine to three groups of fetal sheep in utero: one group had...

Cardiovascular and respiratory effects of stimulation of cell bodies of the parabrachial nuclei in the anaesthetized rat.

Lara, J P, Parkes, M J, Silva-Carvhalo, L, Izzo, P, Dawid-Milner, M S, Spyer, K M

1. In order to assess the importance of the parabrachial nuclei in modulating cardiorespiratory activity, electric current or microinjections of glutamate were used to stimulate discrete regions of...

Responses of ventral respiratory neurones in the rat to vagus stimulation and the functional division of expiration.

Parkes, M J, Lara-Muñoz, J P, Izzo, P N, Spyer, K M

In anaesthetized rats, extracellular and intracellular recordings were taken from 106 respiratory neurones in the intermediate region of the nucleus ambiguus. We observed unprovoked shortening of...

Stimulation of breathing movements by L-5-hydroxytryptophan in fetal sheep during normoxia and hypoxia.

Fletcher, D J, Hanson, M A, Moore, P J, Nijhuis, J G, Parkes, M J

1. In fetal lambs in late gestation, systemic infusion of L-5-hydroxytryptophan (L-5-HTP) during normoxia greatly increases the incidence of fetal breathing movements (FBM) and high-voltage...

Effects of pilocarpine on breathing movements in normal, chemodenervated and brain stem-transected fetal sheep.

Hanson, M A, Moore, P J, Nijhuis, J G, Parkes, M J

1. We examined the effects on fetal breathing movements (FBM) and electrocortical activity (ECoG) of the administration of pilocarpine to three groups of fetal sheep in utero: one group had...