音角膜と比較した円錐角膜患者の断層および遺伝的側面の評価
調査の概要
詳細な説明
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Sao Paulo
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Sao Jose do Rio Preto、Sao Paulo、ブラジル、15015-020
- Visum Eye Center / Immunogenetic laboratory of FAMERP
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
包含基準:
- 臨床検査、トポグラフィーおよびトモグラフィーで円錐角膜と診断された患者
- 片眼に健全な角膜の臨床検査、トポグラフィー、およびトモグラフィーの側面があり、臨床検査、トポグラフィー、およびトモグラフィーによって円錐角膜と診断されたもう一方の眼の患者。
両眼の臨床検査、トポグラフィー、トモグラフィーにより円錐角膜と診断された患者(OU)。
- PRKおよびLASIKを受けたある程度の屈折異常のある患者
除外基準:
- 眼外傷、緑内障、機能不全性涙液症候群、酒さ、神経栄養性角膜症、免疫抑制剤の全身または局所使用、以前の眼科手術の病歴。
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:ふるい分け
- 割り当て:非ランダム化
- 介入モデル:平行
- マスキング:なし
武器と介入
参加者グループ / アーム |
介入・治療 |
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ACTIVE_COMPARATOR:円錐角膜
視覚系ホメオボックス 1 (VSX1)、スーパーオキシドジスムターゼ (SOD1)、メタロプロテイナーゼの組織阻害剤 (TIMP3) 遺伝子の評価。 円錐角膜と円錐角膜のトポグラフィーおよびトモグラフィーによる円錐角膜パターンのない仲間の眼。断層データの評価。 円錐角膜の進行の場合には、角膜架橋手術から角膜上皮のサンプルと末梢血サンプルを採取することもあります。 グループ A 円錐角膜/角膜のような音。 グループ C 円錐角膜 / 円錐角膜 グループ C 円錐角膜 / 円錐角膜 |
角膜上皮および末梢血における VISX1、SOD1、TIMP3 遺伝子の評価。
ペンタカムパラメータの評価
他の名前:
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PLACEBO_COMPARATOR:サウンド角膜
VSX1、SOD1、および TIMP3 遺伝子の評価。 断層撮影の側面を分析するために、拡張症の徴候のない2年間のフォローアップでLASIK(Lasei in situ Keratomileusis)を受けた患者を評価しました遺伝子を分析するために、角膜上皮のサンプルとPRKからの末梢血サンプルを採取しました( PhotoRefractive Keratectomy) 手術。 これらの患者は、地形学的および断層学的に正常なパターンを示しました。 グループ B サウンド角膜 / サウンド角膜 |
角膜上皮および末梢血における VISX1、SOD1、TIMP3 遺伝子の評価。
ペンタカムパラメータの評価
他の名前:
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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円錐角膜、健全な角膜に関連する無症状の円錐角膜の断層撮影パラメーターを評価し、円錐角膜の影響を受けた個人の遺伝子 VSX1、SOD1、および TIMP3 に存在する変異を特定します。
時間枠:18ヶ月
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この研究の目的は、健全な角膜に関連して円錐角膜、無症状の円錐角膜の断層撮影パラメーターを評価し、いくつかの形態の症状で円錐角膜の影響を受けた個人の遺伝子 VSX1、SOD1、および TIMP3 に存在する変異を特定することでした。
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18ヶ月
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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断層パラメータ
時間枠:18ヶ月
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既知の指標を相互参照することで、潜在性円錐角膜の検出における感度と特異性が向上するかどうかを評価する。 - 異なる断層インデックス間に相関関係があるかどうかを評価します。円錐角膜および円錐角膜がない患者の角膜濃度測定を評価すること。 |
18ヶ月
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遺伝子評価、VISX1、SOD1、TIMP3
時間枠:18ヶ月
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上皮の除去後、角膜の曲率、隆起、トポメトリーに非常に大きな変化がある場合の値。
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18ヶ月
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協力者と研究者
捜査官
- 主任研究者:Gildasio C Almeida Jr, MD, PhD、FAMERP, Visum Eye Center
出版物と役立つリンク
一般刊行物
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- CAAE 44071315.7.0000.5415
- 2015/17226-7 (OTHER_GRANT:FAPESP)
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