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1.
J Craniofac Surg ; 2019 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-31343590

RESUMO

Conjunctival prolapse may occur following ocular, eyelid, and orbital surgeries. Conjunctival prolapse usually results as a complication of maximal levator resection or cosmetic lower eyelid blepharoplasty. Here, we describe conjunctival prolapse as an unexpected complication of frontalis muscle flap transfer for severe ptosis. On postoperative day 5, the patient experienced upper eyelid swelling after closing his eyes suddenly and standing up abruptly. The conjunctiva was reddish and ballooned up, and they protruded over the eyelids. Conjunctival prolapse persisted until postoperative day 8. The patient and surgeon were concerned that this complication would affect ptosis correction and surgical outcome. U-shaped fixations were placed to suture and force the prolapsed conjunctiva back to their normal anatomical positions. At postoperative 6 months, the patient had not experienced additional issues, and he was satisfied with the appearance of his eyes. This report describes a rare clinical case of conjunctival prolapse and provides a reference for surgeons treating similar complications.

2.
Chin J Integr Med ; 2014 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-25012630

RESUMO

OBJECTIVE: To investigate the effects of potassium alum (Alunite) on smooth muscle contraction and phosphorylation of myosin light chain by myosin light chain kinase (MLCK) and to try to find out the clue of its mechanism. METHODS: An isolated rabbit duodenum smooth muscle strip was selected to study the effects of potassium alum on its contractile activity under the condition of Krebs' solution using HW-400S constant temperature smooth muscle trough. The myosin and MLCK were purified from chicken gizzard smooth muscle. Myosin light chain phosphorylation was determined by glycerol-polyacrylamide gel electrophoresis; myosin Mg2+-ATPase activity was measured by inorganic phosphate liberation method. RESULTS: Potassium alum (2.5-20 mmol/L) inhibited the contraction on duodenum in a dose-related and a time-dependent manner; potassium alum could also inhibit the extent of phosphorylation of myosin light chain in a dose-related and a time-dependent manner; and potassium alum inhibited the extent of Mg2+-ATPase activity in a dose-related manner. CONCLUSIONS: Potassium alum inhibited smooth muscle contraction in a way of inhibiting phosphorylation of myosin light chain and Mg2+-ATPase activity. This has revealed the molecular mechanism of treatment of gastrointestinal spastic disorders by potassium alum.

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