Abstract:
:To study further the transient increase in trabecular cell division within the first two days after laser trabeculoplasty in human corneoscleral explant organ cultures, we used a pulse-chase protocol in which immediately after laser treatment 3H-thymidine was added to the culture medium for 48 hours (the pulse period). Fresh medium without radiolabel was then added for variable times (the chase period) before termination of the experiment. Autoradiography was used to follow changes in the regional distribution of the cells that divided during the pulse period and had 3H-thymidine-labeled DNA. Laser-treated explants, evaluated after a pulse with no chase, showed a fourfold increase in cell division (P less than .001) over nontreated controls. Nearly 60% of this cell division was localized to the anterior, nonfiltering region of the trabecular meshwork where it inserts into the cornea beneath Schwalbe's line. Trabecular cell division in other regions of the meshwork was not increased over controls at this time. After seven or 14 days of chase without radiolabel, the regional distribution of radiolabeled cells changed in laser-treated explants but not in controls. By 14 days, only 26% of the labeled cells remained in this anterior insert region, while 60% were found in the region of the burn sites. Macroautoradiography of whole explants corroborated these observations. Our data support the hypothesis that laser trabeculoplasty causes early cell division by a population of cells in the anterior meshwork; these new cells then migrate and repopulate the burn sites over the next few weeks.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Acott TS,Samples JR,Bradley JM,Bacon DR,Bylsma SS,Van Buskirk EMdoi
10.1016/0002-9394(89)90805-2subject
Has Abstractpub_date
1989-01-15 00:00:00pages
1-6issue
1eissn
0002-9394issn
1879-1891pii
0002-9394(89)90805-2journal_volume
107pub_type
杂志文章abstract::T-cell and B-cell lymphocyte subpopulations, monocytes, granulocytes, and immunoglobulin receptors were measured with monoclonal antibodies and flow cytometric techniques in the peripheral blood of 266 patients with posterior uveal melanoma before therapy. Statistically significant differences were found in T-helper/i...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(86)90587-8
更新日期:1986-02-15 00:00:00
abstract:PURPOSE:To examine surgical and refractive outcomes of phacoemulsification with intraocular lens (IOL) implant in eyes with prior trabeculectomy. DESIGN:Retrospective observational case-control study. METHODS:The study compared eyes that underwent phacoemulsification with IOL implant at least 3 months post-trabeculec...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
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更新日期:2013-05-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2000-12-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:1995-06-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
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journal_title:American journal of ophthalmology
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更新日期:1979-05-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:1997-02-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2007-01-01 00:00:00
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更新日期:1978-02-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:1976-03-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2005-08-01 00:00:00
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更新日期:2002-02-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2007-01-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
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更新日期:2004-02-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
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更新日期:1988-06-15 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(78)90182-4
更新日期:1978-11-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)76210-5
更新日期:1991-07-15 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2010-08-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章,多中心研究
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更新日期:2018-02-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2004-12-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:1998-09-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:1985-09-15 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2006.03.061
更新日期:2006-09-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
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更新日期:1990-07-15 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)71171-7
更新日期:1995-03-01 00:00:00
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journal_title:American journal of ophthalmology
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更新日期:2004-06-01 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2018.08.050
更新日期:2018-12-01 00:00:00
abstract::A prospective study of ophthalmologic findings in 20 African patients with the acquired immunodeficiency syndrome (Group 1) and nine patients with acquired immune deficiency syndrome related complex (Group 2) disclosed that 11 patients in Group 1 and two patients in Group 2 had ocular involvement. Cotton-wool spots, R...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(85)90787-1
更新日期:1985-08-15 00:00:00
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journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(98)00122-6
更新日期:1998-10-01 00:00:00