کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4011099 1261097 2016 3 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Intraocular pressure fluctuations of growing chick eyes are suppressed in constant light conditions
ترجمه فارسی عنوان
نوسانات فشار داخل چشم چشم جوجه در حال رشد در شرایط نور ثابت از بین می رود
کلمات کلیدی
فشار داخل چشم؛ نور ثابت. جوجه؛ توسعه؛ روزانه؛ رشد
Intraocular pressure; Constant light; Chick; Development; Diel; Growth
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی و میکروب شناسی (عمومی)
چکیده انگلیسی


• Chick intraocular pressure varies between light and dark.
• Intraocular pressure in chicks does not vary in constant light.
• Recovery of normal intraocular pressure fluctuation requires more than one week after three weeks in constant light.

We report measurements of intraocular pressure (IOP) in growing domestic chicks at 12 h intervals, with three different lighting conditions. One group of chicks was raised in 12 h light and 12 h darkness (N), another in constant light (CL), and the third group was initially exposed to CL for three weeks then returned to N for either one week or four weeks (CLN). Pressures were measured in the middle of the light and dark periods (noon and midnight) for N and CLN birds, and at corresponding 12 h intervals for CL birds (also noon and midnight). The IOP of N chicks fluctuated from a light period average value of 25 mm Hg ( ±1.3 SD), to a dark period average value of 17.5 mm Hg ( ±1.1 SD mm Hg; P < 0.0001). These pressures were established by 4 days of age. At 7 weeks, (N) IOP continued to fluctuate: light values were 21.7 mm Hg (±1.2 SD), and dark values were 18.3 mm Hg ( ±0.7 SD). The IOP of CL birds did not fluctuate, remaining steady at 17 mm Hg ( ±1.4 SD). Chicks exposed to CL for 3 weeks required more than one week in N to re-establish (N) IOP values. We conclude that IOP fluctuates in hatchling chicks under N light conditions, that fluctuation is suppressed in CL light conditions, and that IOP recovery from 3 weeks suppression in CL requires more than one week in N light conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Eye Research - Volume 148, July 2016, Pages 52–54
نویسندگان
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