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健康受试者眼用软膏角膜前滞留情况的评估。

Assessment of the precorneal residence of an ophthalmic ointment in healthy subjects.

作者信息

Greaves J L, Wilson C G, Birmingham A T

机构信息

Department of Physiology and Pharmacology, Medical School, Queen's Medical Centre, Nottingham.

出版信息

Br J Clin Pharmacol. 1993 Feb;35(2):188-92.

Abstract
  1. The precorneal residence of an ophthalmic ointment radiolabelled by inclusion of technetium-99m tin colloid was assessed in seven volunteer subjects using the technique of gamma scintigraphy and compared with a solution of 0.3% w/v hydroxypropylmethylcellulose, (HPMC) radiolabelled by inclusion of technetium-99m diethylenetriaminepentaacetic acid in the same subjects. 2. The mean half-times (+/- s.d.) of corneal residence were 6490 +/- 5404 s (108 min) for the ointment and 13 +/- 24 s for the 0.3% w/v HPMC solution (P < 0.01). 3. The area-under-curve value (AUC(0,540 s)), which reflects the total residence time of the preparation on the ocular surface, was calculated for each vehicle in each subject. The mean (+/- s.d.) AUC(0,540 s) value for the ointment was 42170 (+/- 5032)% s and for the 0.3% w/v HPMC solution it was 8394 (+/- 4641)% s (P < 0.01).
摘要
  1. 采用γ闪烁显像技术,在7名志愿者受试者中评估了含有锝-99m锡胶体的放射性标记眼药膏在角膜前的停留情况,并与在相同受试者中含有锝-99m二乙三胺五乙酸的0.3% w/v羟丙基甲基纤维素(HPMC)溶液进行了比较。2. 眼药膏角膜停留的平均半衰期(±标准差)为6490±5404秒(108分钟),0.3% w/v HPMC溶液为13±24秒(P<0.01)。3. 计算了每个受试者每种制剂的曲线下面积值(AUC(0,540 s)),其反映了制剂在眼表的总停留时间。眼药膏的平均(±标准差)AUC(0,540 s)值为42170(±5032)%·秒,0.3% w/v HPMC溶液为8394(±4641)%·秒(P<0.01)。

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Am J Ophthalmol. 1975 Jul;80(1):133-8. doi: 10.1016/0002-9394(75)90883-1.
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Effects of drug vehicles on ocular contact time.药物载体对眼部接触时间的影响。
Arch Ophthalmol. 1975 Jan;93(1):42-5. doi: 10.1001/archopht.1975.01010020046008.

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