Abstract：
:Neurophysiologists have been investigating the responses of neurons in the visual system for the past half-century using monkeys and cats that are anesthetized and paralyzed, with the non-blinking eyelids open for prolonged periods of time. Impermeable plastic contact lenses have been used to prevent dehydration of the corneal epithelium, which would otherwise occur in minutes. Unfortunately, such lenses rapidly introduce a variety of abnormal states that lead to clouding of the cornea, degradation of the retinal image, and premature termination of the experiment. To extend the viability of such preparations, a new protocol for maintenance of corneal health has been developed. The protocol uses rigid gas permeable contact lenses designed to maximize gas transmission, rigorous sterile methods, and a variety of methods for sustaining and monitoring the overall physiology of the animal. The effectiveness of the protocol was evaluated clinically by ophthalmoscopy before, during, and after the experiments, which lasted 8-10 days. Histopathology and quantitative histology were performed on the corneas following the experiment. Our observations showed that this protocol permits continuous contact lens wear without adversely affecting the corneas. Thus, it is possible to collect data 24 h each day, for the entire duration of the experiment.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Metha AB,Crane AM,Rylander HG 3rd,Thomsen SL,Albrecht DGdoi
10.1016/s0165-0270(01)00409-5subject
Has Abstractpub_date
2001-08-30 00:00:00pages
153-66issue
2eissn
0165-0270issn
1872-678Xpii
S0165027001004095journal_volume
109pub_type
杂志文章abstract：:Multipotent neural stem cells have been isolated from the adult [Kirschenbaum B, Nedergaard M, Preuss A, Barami K, Fraser RA, Goldman SA. In vitro neuronal production and differentiation by precursor cells derived from the adult human forebrain. Cereb Cortex 1994;4(6):576-89; Laywell ED, Kukekov VG, Steindler DA. Mult...
journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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abstract：:Exceptionally clear Golgi-Nissl sections of 300 micron thickness have been morphometrically studied by light microscopy using oil immersion objectives. The clarity results from a new variation of a staining procedure that combines Golgi and Nissl images in one section. A viewing technique has been developed that permi...
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