1
|
Gudiseva HV, Pistilli M, Salowe R, Singh LN, Collins DW, Cole B, He J, Merriam S, Khachataryan N, Henderer J, Addis V, Cui QN, Sankar PS, Miller-Ellis E, Chavali VRM, Ying GS, Wallace D, O'Brien JM. The association of mitochondrial DNA haplogroups with POAG in African Americans. Exp Eye Res 2019; 181:85-89. [PMID: 30653964 DOI: 10.1016/j.exer.2019.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 01/08/2019] [Accepted: 01/14/2019] [Indexed: 10/27/2022]
Abstract
Mitochondrial dysfunction has been implicated in the pathogenesis of primary open-angle glaucoma (POAG). However, the potential significance of mitochondrial DNA (mtDNA) haplogroups to POAG has not been evaluated in the overaffected African American population. To investigate the association of mtDNA haplogroups with POAG and its phenotypic characteristics, genotyping data from 4081 African American subjects (1919 cases and 2162 controls) was analyzed using 1293 positions on mtDNA. The overall frequency of mtDNA haplogroups in the Primary Open-Angle African American Glaucoma Genetics (POAAGG) study cohort was 37% L3, 29% L2, 21% L1, 4% L0, and 10% non-African haplogroups (non-L). When all haplogroups (L0, L1, L2, and non-L) were compared against theL3 reference group, after adjusting by age and principal component of ancestry, the non-L3 haplogroups showed higher risk of POAG (OR-1.19, p = 0.02), with a particularly strong association among males (OR = 1.41, p = 0.003). More specifically the non-L group was associated with higher POAG risk than the L3 haplogroup (OR = 1.77, p = 0.007, Bonferroni adjusted p = 0.027) and to the L3e (n = 256, OR = 1.92, p = 0.007, Bonferroni adjusted p = 0.029). No significant association was found when genders were analyzed together or in female only analysis. There were no significant differences in various POAG endophenotypes across mtDNA haplogroups. This study expands our knowledge of mitochondrial genetics and mtDNA haplogroup associations in African American POAG. Further work is needed to better understand the functional role of mtDNA polymorphisms and their interactions with nuclear genes that affect POAG.
Collapse
Affiliation(s)
- Harini V Gudiseva
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Maxwell Pistilli
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Rebecca Salowe
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Larry N Singh
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia and Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David W Collins
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Brian Cole
- Institute for Biomedical Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - Jie He
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Sayaka Merriam
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Jeffrey Henderer
- Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Victoria Addis
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Qi N Cui
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Prithvi S Sankar
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Gui-Shuang Ying
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Douglas Wallace
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia and Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joan M O'Brien
- Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA. joan.o'
| |
Collapse
|