High numbers of cytotoxic and helper T-lymphocytes, plasma cells, and macrophages indicate a chronic inflammatory reaction in the conjunctiva of glaucoma patients. The chronic inflammation is most probably owing to the chronic topical treatment of the patients and seems to be a significant risk factor for DS surgery failure.
These findings demonstrate that sPLA(2)-IIA, sPLA(2)-V, iPLA(2) and cPLA(2) are expressed in the conjunctiva of non-glaucomatous patients. In the epithelium, sPLA(2)-IIA, sPLA(2)-V, and cPLA(2) may participate in protection against risks caused by mechanical wear and tear stress whereas iPLA(2) may regulate remodeling and maintenance of membrane phospholipids. sPLA(2)-IIA may also have the important role in the degradation of bacteria. In conjunctival stroma of POAG and ExG patients, sPLA(2)-IIA may play a role in the development of scar tissue after glaucoma filtration surgery.
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