title: [Cytotoxic effect of mitomycin C on the nonpigmented epithelium of ciliary body in rabbit eyes].
abstract: OBJECTIVE
  To observe pathomorphological changes of nonpigmented epithelial cells (NECs) of ciliary body after local single application of mitomycin C (MMC) during sclerectomy in rabbit eyes, and to explore cytotoxic effect of MMC on ciliary body.
  
  
  METHODS
  A single five minutes intraoperative exposure to the agent MMC (0.2 mg/ml, 0.1 ml) was used during sclerectomy in rabbit eyes. The treated area was rinsed with 20 ml normal saline. The NECs of ciliary body at the operated area were observed under light microscope and transmission electron microscope on the 7th and 28th day postoperatively.
  
  
  RESULTS
  On the 7th day postoperatively, the NECs were swollen, and the intracellular abundant mitochondria were swollen and vacuolized. String pearls-like membrane-encapsulated vacuoles were present in the intervals of beta-cell membrane of the NECs. On the 28th day postoperatively, these damages were gradually recovered.
  
  
  CONCLUSIONS
  These findings suggest a toxic effect of MMC on the NECs of ciliary body, possibly that can decrease the aqueous production and intraocular pressure, even causing persistent hypotony.
authors.affiliation: Department of Ophthalmology, Xiangya Hospital, Hunan Medical University, Changsha 410008.
authors.forename: X
authors.initials: X
authors.lastname: Xia
authors.forename: Y
authors.initials: Y
authors.lastname: Jiang
authors.forename: P
authors.initials: P
authors.lastname: Huang
authors.forename: Z
authors.initials: Z
authors.lastname: Wu
authors.forename: Q
authors.initials: Q
authors.lastname: Zeng
authors.forename: J
authors.initials: J
authors.lastname: Wen
mesh_terms: D000818:Animals; D002924:Ciliary Body / Q000187:drug effects* / Q000648:ultrastructure; D004848:Epithelium / Q000187:drug effects; D005260:Female; D007429:Intraocular Pressure / Q000187:drug effects; D008297:Male; D016685:Mitomycin / Q000633:toxicity*; D011817:Rabbits
chemical_list: D016685:Mitomycin