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'https://openalex.org/W3029095879', 'https://openalex.org/W2679010736', 'https://openalex.org/W2523328452', 'https://openalex.org/W2389601191', 'https://openalex.org/W2087285445', 'https://openalex.org/W2036945347', 'https://openalex.org/W1973318102'], 'abstract_inverted_index': {'目的': [0], '观察人视网膜发育和分化过程中基质金属蛋白酶9(MMP-9)的表达水平与细胞分布特点,探讨其在人视网膜发育和分化过程中的可能作用.方法': [1], '胚胎发育早期、中晚期及成人视网膜石蜡切片,抗MMP-9免疫组织化学染色,观察MMP-9表达水平和分布的变化.结果': [2], '胚胎发育早期的视网膜仅在外成神经细胞层的外侧可见弱阳性细胞;胚胎发育中期外成神经细胞层的外侧,即将来要发育成盘膜处出现明显的特异性染色,而其他细胞染色仍然较弱;成人视网膜的外核层出现显著的特异性染色细胞,胞质明显着色,胞体轮廓清晰,并可观察到锥体的结构以及突触的特异染色,判断这些细胞主要是光感受器细胞中的视锥细胞.结论': [3], 'MMP-9在视网膜中的表达与视网膜的成熟和细胞分化关系密切,在光感受器中的视锥细胞高水平表达,提示MMP-9可能参与视觉信号的处理。': [4]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3031664073', 'counts_by_year': [], 'updated_date': '2024-12-14T07:20:14.984164', 'created_date': '2020-06-05'}