PMID- 21607023 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20110714 LR - 20220317 IS - 1177-5483 (Electronic) IS - 1177-5467 (Print) IS - 1177-5467 (Linking) VI - 5 DP - 2011 TI - Tumor necrosis factor-alpha (TNF-alpha) levels in aqueous humor of primary open angle glaucoma. PG - 553-6 LID - 10.2147/OPTH.S19453 [doi] AB - PURPOSE: Tumor necrosis factor alpha (TNF-alpha), a macrophage/monocyte derived pluripotent cytokine is associated with tissue ischemia, neuronal damage and remodeling. The physiological level of TNF-alpha in aqueous humor of normal and glaucomatous eyes is unknown. In this study, we evaluated the TNF-alpha levels in aqueous in patients with primary open angle glaucoma (POAG) and compared them to controls. METHODS: 50-100 muL of undiluted aqueous humor samples were obtained from eyes of 32 POAG patients who underwent cataract extraction, trabeculectomy or aqueous shunt implantation. Controls were obtained from 32 normal subjects who underwent routine cataract surgery. TNF-alpha levels were quantified using singleplex bead immunoassay analysis. RESULTS: The average TNF-alpha level in POAG samples was 2.72 +/- 1.5 pg/mL (mean +/- SD). The average TNF-alpha level in normal samples was 1.59 +/- 0.46 pg/mL (mean +/- SD). Significant increase of TNF-alpha levels in POAG samples was noted in comparison to normal samples (P < 0.001). CONCLUSION: TNF-alpha levels are elevated in aqueous in patients with POAG compared to normal subjects based on highly sensitive Luminex((R)) bead immunoassay and may be a reliable biomarker in the progression of glaucoma. FAU - Balaiya, Sankarathi AU - Balaiya S AD - University of Florida College of Medicine, Department of Ophthalmology Jacksonville, FL, USA. FAU - Edwards, Jayson AU - Edwards J FAU - Tillis, Tina AU - Tillis T FAU - Khetpal, Vijay AU - Khetpal V FAU - Chalam, Kakarla V AU - Chalam KV LA - eng PT - Journal Article DEP - 20110429 PL - New Zealand TA - Clin Ophthalmol JT - Clinical ophthalmology (Auckland, N.Z.) JID - 101321512 PMC - PMC3096616 OTO - NOTNLM OT - POAG OT - TNF-alpha OT - aqueous humor OT - cytokine EDAT- 2011/05/25 06:00 MHDA- 2011/05/25 06:01 PMCR- 2011/04/29 CRDT- 2011/05/25 06:00 PHST- 2011/04/28 00:00 [received] PHST- 2011/05/25 06:00 [entrez] PHST- 2011/05/25 06:00 [pubmed] PHST- 2011/05/25 06:01 [medline] PHST- 2011/04/29 00:00 [pmc-release] AID - opth-5-553 [pii] AID - 10.2147/OPTH.S19453 [doi] PST - ppublish SO - Clin Ophthalmol. 2011;5:553-6. doi: 10.2147/OPTH.S19453. Epub 2011 Apr 29.