• 제목/요약/키워드: Blood ocular barrier

검색결과 3건 처리시간 0.017초

Experimental Cats Model for Research of the Blood Ocular Barrier

  • Park Byung-Rae
    • 대한의생명과학회지
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    • 제11권4호
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    • pp.555-559
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    • 2005
  • Evaluate the triolein emulsion could disrupt the barriers and to suggest as an experimental model in blood-ocular barrier studies. Triolein emulsion was infused into the carotid artery in the experimental group ten cats. Normal saline was used in another the control group ten cats. Pre contrast and postcontrast T1-weighted MR images were obtained at 30 minutes and 3 hours after embolization. Signal intensities were evaluated in the anterior, posterior chamber and in the vitreus qualitatively and quantitatively. Postembolization 30 minutes MR images were not different from those of the control group. Postembolization 3 hour MR images demonstrated delayed contrast enhancement in the anterior chamber of the ipsilateral and contralateral eyeballs and in the posterior chamber of the ipsilateral eyeball. Delayed contrast enhancement of the posterior chamber of the ipsilateral eyeball was statistically significant (P<0.05). The present study demonstrated significant contrast enhancement in the posterior chamber with infusion of triolein emulsion and can be a model in blood-aqueous barrier studies.

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수의학강좌 I: 점안 안약의 전달 (Ocular Drug Delivery)

  • 최희연
    • 대한수의사회지
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    • 제47권1호
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    • pp.42-46
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    • 2011
  • 임상에 있어 눈에 적용하는 약물의 적용은 정상적인 조직을 손상시키지 않으면서 원하는 안구 조직에 목표로 하는 용량의 안약을 전달하는 것이 목적이라고 할 수 있다. 그러나 이러한 간단한 목적도 실제로 환자의 성격, 안구 조직의 민감성, 그리고 친지질성 각막 외피세포(lipophilic corneal epithelium), 친수성 각막 그리고 공막의 간질층(hydrophilic corneal and sclera stroma), 결막의 임파 조직, 맥락막의 혈관 등, Blood-ocular barrier등 안구의 조직 자체의 장벽들로 인해 어려움을 내포하고 있는 것 역시 사실이다. 평소에 처방하고 있는 안약들을 조금 더 효과적으로 전달하기 위해 필요한 눈에 대한 이해에 대해 다루어 보도록 한다.

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신경교종에서 뇌동맥내 Carboplatin주입후 발생한 안구 합병증 - 3례보고 - (Ocular Complications after Injection of Intra-arterial Carboplatin in Gliomas - Report of Three Cases -)

  • 김주한;이장보;정용구;박정율;이훈갑;서중근
    • Journal of Korean Neurosurgical Society
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    • 제30권5호
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    • pp.638-641
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    • 2001
  • Carboplatin intra-arterial chemotherapy(IAC) has an advantage of increased uptake during the first passage of the drugs through tumor capillaries. Although not common, this type of therapy is known to cause neurological complications, myelosuppression, and ototoxicity. However, the incidence of ocular toxicity is reported to be rare. Eleven of our patients with glioma(Grade II Astrocytoma : 3, Grade III Astrocytoma : 1, Grade IV Astrocytoma : 5, Gliofibroma : 1, Oligodendroglioma : 1) underwent IAC regimen with carboplatin($300mg/m^2$) which were administrated after blood-brain barrier disruption. Of there, 3 patients had ocular complications after supra-ophthalmic IAC injection of carboplatin but fully recovered following steroid therapy. Although our results from IAC seem to be favorable for these patients, we suggest that its complications, such as ocular toxicity, need to be carefully considered prior to treatment.

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