PMID- 29183303 OWN - NLM STAT- MEDLINE DCOM- 20171214 LR - 20181113 IS - 1471-2415 (Electronic) IS - 1471-2415 (Linking) VI - 17 IP - 1 DP - 2017 Nov 28 TI - Link between neurodegeneration and trabecular meshwork injury in glaucomatous patients. PG - 223 LID - 10.1186/s12886-017-0623-z [doi] LID - 223 AB - BACKGROUND: Glaucoma is classified as a neurodegenerative disease. However, the biomarkers of neurodegeneration in the aqueous humour of primary open angle glaucoma (POAG) eyes have not been quantitatively examined yet. In this study, levels of neurodegeneration-related cytokines in the aqueous humour of POAG eyes were measured and compared with those of non-glaucoma (senile cataract) control eyes. METHODS: This cross-sectional study included 24 patients (24 eyes) with POAG and 22 patients (22 eyes) with cataract. Aqueous humour samples were collected before the commencement of phacoemulsification surgery. The concentrations of brain-derived neurotrophic factor (BDNF), cathepsin D, myeloperoxidase (MPO), soluble intercellular adhesion molecule-1 (sICAM-1), soluble neural cell adhesion molecule (sNCAM), soluble vascular cell adhesion molecule-1 (sVCAM-1), and plasminogen activator inhibitor-1 (PAI-1) were measured using the Luminex suspension array technique. The clinical characteristics of the patients were also obtained for correlation analysis. RESULTS: Compared with the cataract group, the levels of cathepsin D (P < 0.001), sNCAM (P < 0.001) and sVCAM-1 (P = 0.007) were significantly higher in the aqueous humour samples from POAG. The levels of BDNF, sICAM-1, MPO and PAI-1 did not differ among the groups. Mean deviation (MD) values measured by the Humphrey Visual Field Analyzer were significantly associated with levels of cathepsin D (P < 0.001; rho= - 0.668), sICAM-1 (P = 0.003; rho= - 0.579), sVCAM-1(P < 0.001; rho= - 0.695), and PAI-1 (P = 0.007; rho= - 0.533). The cytokines showed a positive correlation among each other (P < 0.0083). CONCLUSION: These data suggest that POAG patients had elevated levels of multiple biomarkers of neurodegeneration in the aqueous humour, and these elevated biomarkers may be related to trabecular meshwork injury. TRIAL REGISTRATION: This study was registered in the Chinese Clinical Trial Registry ( ChiCTR-OOC-16008516 ) on May 22, 2016. FAU - Zhang, Yong AU - Zhang Y AD - Department of Ophthalmology, Daping Hospital & Research Institute of Surgery, Third Military Medical University, No.10, Changjiang Branch Road, Chongqing, 400042, People's Republic of China. FAU - Yang, Qinmei AU - Yang Q AD - Department of Ophthalmology, Daping Hospital & Research Institute of Surgery, Third Military Medical University, No.10, Changjiang Branch Road, Chongqing, 400042, People's Republic of China. FAU - Guo, Feng AU - Guo F AD - Department of Ophthalmology, Daping Hospital & Research Institute of Surgery, Third Military Medical University, No.10, Changjiang Branch Road, Chongqing, 400042, People's Republic of China. FAU - Chen, Xia AU - Chen X AD - Department of Ophthalmology, Daping Hospital & Research Institute of Surgery, Third Military Medical University, No.10, Changjiang Branch Road, Chongqing, 400042, People's Republic of China. FAU - Xie, Lin AU - Xie L AD - Department of Ophthalmology, Daping Hospital & Research Institute of Surgery, Third Military Medical University, No.10, Changjiang Branch Road, Chongqing, 400042, People's Republic of China. Xielin1630@163.com. LA - eng PT - Journal Article DEP - 20171128 PL - England TA - BMC Ophthalmol JT - BMC ophthalmology JID - 100967802 RN - 0 (Biomarkers) RN - 0 (Cytokines) SB - IM MH - Aged MH - Aged, 80 and over MH - Aqueous Humor/*metabolism MH - Biomarkers/metabolism MH - Cataract/metabolism MH - Cross-Sectional Studies MH - Cytokines/*metabolism MH - Female MH - Glaucoma, Open-Angle/*metabolism/pathology MH - Humans MH - Male MH - Middle Aged MH - Neurodegenerative Diseases/*metabolism MH - Trabecular Meshwork/*pathology PMC - PMC5706159 OTO - NOTNLM OT - Aqueous humour OT - Cataract OT - Neurodegeneration OT - Primary open angle glaucoma COIS- ETHICS APPROVAL AND CONSENT TO PARTICIPATE: This study was approved by the Ethical Review Committee of the Daping Hospital of the Third Military Medical University (No._47) and adhered to the provisions of the Declaration of Helsinki for research involving human subjects. We also registered in the Chinese Clinical Trial Registry (ChiCTR-OOC-16008516) on May 22, 2016. Each patient recruited in this study was given an explanation about the research and signed an informed consent for AH collection. CONSENT FOR PUBLICATION: Not applicable. COMPETING INTERESTS: The authors declare that they have no competing interests. PUBLISHER'S NOTE: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2017/12/01 06:00 MHDA- 2017/12/15 06:00 PMCR- 2017/11/28 CRDT- 2017/11/30 06:00 PHST- 2017/06/26 00:00 [received] PHST- 2017/11/20 00:00 [accepted] PHST- 2017/11/30 06:00 [entrez] PHST- 2017/12/01 06:00 [pubmed] PHST- 2017/12/15 06:00 [medline] PHST- 2017/11/28 00:00 [pmc-release] AID - 10.1186/s12886-017-0623-z [pii] AID - 623 [pii] AID - 10.1186/s12886-017-0623-z [doi] PST - epublish SO - BMC Ophthalmol. 2017 Nov 28;17(1):223. doi: 10.1186/s12886-017-0623-z.