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211.

Activation of Vestibular Neurons Projecting to Autonomic Brain Stem Nuclei Following Acute Hypotension in Rats

MyoungAeChoi, WonKiWang, DongOkChoi, MinSunKim, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.3 3 133-140 (8 pages)

MyoungAeChoi, WonKiWang, DongOkChoi, MinSunKim, ByungRimPark 저
...
- 3,000원
The purpose of the present study was to elucidate the possible involvement of the medial vestibular nucleus (MVN) and inferior vestibular nucleus (IVN) following acute hypotension in the vestibulo- autonomic reflex through vestibulosolitary or vestibuloventrolateral projections. Acute hypotension- induced cFos expression was assessed in combination with retrograde cholera toxin B subunit (CTb) tract tracing. After injection of CTb into the solitary region, CTb-labeled neurons were located...
212.

Responses of Inferior Olive Neurons to Stimulation of Semicircular Canals. II. Vertical Semicircular Canalss

Sah-HoonPark, JongSeongPark, JinSoonPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.4 1 193-198 (6 pages)

Sah-HoonPark, JongSeongPark, JinSoonPark 저
...
- 3,000원
In the present study, the vestibularly evoked activity of inferior olive (IO) neurons was examined to investigate the vertical vestibular information transmitted through the vestibulo-olivo-cerebellar climbing fiber pathway. The extracellular recording was made in 74 neurons of the IO of cats, while animals were sinusoidally rotated. Most of vestibularly activated IO neurons responded to the vertical rotation (roll) test and were found in or near the β subnuclei (IOβ). The vestibular IO...
213.

Changes in Vestibular Nerve Activity Following Acute Hypotension in Rats

ByungRimPark, MinSunKim, GueHyunYee, MyoungJinMoon, JaeHyoKim, YuanZheJin, YoSikKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.2 6 85-89 (5 pages)

ByungRimPark, MinSunKim, GueHyunYee, MyoungJinMoon, JaeHyoKim, YuanZheJin, YoSikKim 저
...
- 1,500원
The basic mechanism for the excitation of the peripheral vestibular receptors following acute hypotension induced by sodium nitroprusside (SNP) or hemorrhage was investigated in anesthetized rats. Electrical activity of the afferent vestibular nerve was measured after pretreatment with kynurenic acid, an NMDA receptor antagonist. The activity of the vestibular nerve at rest following acute hypotension induced by SNP or simulating hemorrhage was a greater increase than in control animals. The...
214.

Changes in Excitability of Neurons in Rat Medial Vestibular Nucleus Following Vestibular Neurectomy

SangWooChun, JeongHeeChoi, ShinHyungLee, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 2 287-291 (5 pages)

SangWooChun, JeongHeeChoi, ShinHyungLee, ByungRimPark 저
...
- 1,500원
Intrinsic excitabilities of acutely isolated medial vestibular nucleus (MVN) neurons of rats with normal labyrinth and with undergoing vestibular compensation from 30 min to 24 h after unilateral vestibular deafferentation (UVD) were compared. In control rats, proportions of type A and B cells were 30 and 70%, respectively, however, the proportion of type A cells increased following UVD. Bursting discharge and irregular firing patterns were recorded from 2 to 12 h post UVD. The spontaneous...
215.

Neuronal Activity of the Vestibular Nuclei Following Acute Hypotension in Rats

ByungRimPark, MinSunKim, KumHyunBaik, MoonYoungLee, MyungAeChoi, JaeHyoLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.4 5 199-206 (8 pages)

ByungRimPark, MinSunKim, KumHyunBaik, MoonYoungLee, MyungAeChoi, JaeHyoLee 저
...
- 3,000원
The role of peripheral vestibular receptors in acute hypotension was investigated in anesthetized rats. Acute hypotension was induced by either intravenous infusion of sodium nitroprusside (SNP) or by experimental hemorrhage, and electrical activity and expression of cFos-like immunoreactive (cFL) protein were measured in the medial vestibular nuclei (MVN). Blood pressure decreased proportionately to the does of intravenous SNP and to the volume of the hemorrhage. Blood pressure decreased 10,...
216.

Responses of Inferior Olive Neurons to Stimulation of Semicircular Canals

Sah-HoonPark, JongSeongPark, MinSuLee, JungWooShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.4 4 193-198 (6 pages)

Sah-HoonPark, JongSeongPark, MinSuLee, JungWooShin 저
...
- 3,000원
In spite of abundant anatomical evidences for the fiber connection between vestibular nuclei and inferior olivary (IO) complex, the transmission of vestibular information through the vestibulo- olivo-cerebellar climbing fiber pathway has not been physiologically established. The aims of the present study were to investigate whether there are IO neurons specifically responding to horizontal rotation and also in which subregions of IO complex these vestibularly-activated neurons are located. The...
217.

Electrical Stimulation Can Facilitate Vestibular Compensation Following Unilateral Labyrinthectomy in Rats

ByungRimPark, JinOkKim, MinSunKim, MoonYoungLee, JaeHyoKim, Yuan-ZheJin, MyungAeChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 2 123-131 (9 pages)

ByungRimPark, JinOkKim, MinSunKim, MoonYoungLee, JaeHyoKim, Yuan-ZheJin, MyungAeChoi 저
...
- 3,000원
applied to the injured vestibular portion in Sprague-Dawley rats. Vestibuloocular and vestibulospinal reflexes, electrical activity and expression of c-Fos protein in medial vestibular nuclei (MVN) were measured with time following UL. Spontaneous nystagmus occurred with frequency of 2.9⁑0.2 beats/sec at 2 hours after UL and disappeared after 72 hours. Electrical stimulation decreased the frequency of nystagmus significantly till 24 hours after UL. Roll head deviation was 107⁑9.7o at...
218.

Role of Angiotensin II and Nitric Oxide in the Rat Paraventricular Nucleus

Eun-KyoungYang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.1 6 41-46 (6 pages)

Eun-KyoungYang 저
...
- 3,000원
To investigate the mutual relationship between angiotensin II (Ang II) and nitric oxide (NO) in paraventricular nucleus (PVN), Ang II receptor type Ia (AT1A), type Ib (AT1B), endothelial constitutive nitric oxide synthase (ecNOS), and neuronal constitutive nitric oxide synthase (ncNOS) mRNA levels of rat PVN were measured after unilateral carotid artery ligation. AT1A and AT1B mRNA levels were markedly elevated 6 hrs after unilateral carotid artery ligation. Losartan injection (10μg/0.3μl)...
219.

Regulation of Immediate Early Gene Expression by Glutamate Receptor Activation in C6 Rat Glioma Cells

Jin-KooLee, Yung-HiKim, Seong-SooChoi, Hong-WonSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.1 3 19-25 (7 pages)

Jin-KooLee, Yung-HiKim, Seong-SooChoi, Hong-WonSuh 저
...
- 3,000원
addition, forskolin and phorbol 12-myristate 13-acetate (PMA) increased c-fos mRNA level. Furthermore, PMA increased c-jun mRNA level whereas forskolin downregulated c-jun mRNA level. The glutamate, NMDA and KA, at a concentration of 0.25 mM, did not affect the basal c-fos and c-jun mRNA levels, and also did not affect forskolin- and PMA-induced responses. Furthermore, both forskolin and PMA itself increased the phosphorylation of ERK (extracellular signal regulated kinase) and CREB (cyclicAMP...
220.

Temporal Changes in Neuronal Activity of the Bilateral Medial Vestibular Nuclei Following Unilateral Labyrinthectomy in Rats

ByungRimPark, MoonYoungLee, MinSunKim, SungHoLee, HanJoNa, NamYongDoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 4 481-490 (10 pages)

ByungRimPark, MoonYoungLee, MinSunKim, SungHoLee, HanJoNa, NamYongDoh 저
...
- 3,000원
To investigate the changes in the responses of vestibular neurons with time during vestibular compensation, the resting activity and dynamic responses of type I and II neurons in the medial vestibular nuclei to sinusoidal angular acceleration were recorded following unilateral labyrinthectomy (ULX) in Sprague-Dawley rats. The unitary extracellular neuronal activity was recorded from the bilateral medial vestibular nuclei with stainless steel microelectrodes of 3∼5 MΩ before ULX, and 6, 24,...

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