Animal model explains the origins of the cranial dystonia benign essential blepharospasm.
Animal model explains the origins of the cranial dystonia benign essential blepharospasm.
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动物模型解释了颅骨肌张力障碍良性原发性眼睑痉挛的起源。
DOI:
10.1152/jn.1997.77.5.2842
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发表时间:
1997
影响因子:
2.5
通讯作者:
Evinger,C
中科院分区:
文献类型:
--
作者:
Schicatano,EJ;Basso,MA;Evinger,C
Schicatano, Edward J., Michele A. Basso, and Craig Evinger.Animal model explains the origins of the cranial dystonia benign essential blepharospasm.J. Neurophysiol.77: 2842–2846, 1997. The current study demonstrates that combining two mild alterations to the rat trigeminal reflex blink system reproduces the symptoms of benign essential blepharospasm, a cranial dystonia characterized by uncontrollable spasms of blinking. The first modification, a small striatal dopamine depletion, reduces the tonic inhibition of trigeminal reflex blink circuits. The second alteration, a slight weakening of the lid-closing orbicularis oculi muscle, begins an adaptive increase in the drive on trigeminal sensory-motor blink circuits that initiates blepharospasm. By themselves, neither of these modifications causes spasms of lid closure, but combined, they induce bilateral forceful blinking and spasms of lid closure. A two-factor model based on these rodent experiments may explain the development of benign essential blepharospasm in humans. The first factor, a subclinical loss of striatal dopamine, creates a permissive environment within the trigeminal blink circuits. The second factor, an external ophthalmic insult, precipitates benign essential blepharospasm. This two-factor model may also be applicable to the genesis of other cranial dystonias.
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影响因子:
--
作者:
J. Jankovic
通讯作者:
J. Jankovic
影响因子:
3.9
作者:
J. Elston;Marsden Cd;F. Grandas;N. Quinn
通讯作者:
N. Quinn
影响因子:
11.2
作者:
KAJI, R;ROTHWELL, JC;KIMURA, J
通讯作者:
KIMURA, J
DOI:
--
发表时间:
1973
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
J. Kimura
通讯作者:
J. Kimura
DOI:
--
发表时间:
1991
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Hotson,JR;Boman,DR
通讯作者:
Boman,DR