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Raciborska A, Sidorczuk P, Konopińska J, Dmuchowska DA. Interocular Symmetry of Choroidal Parameters in Patients with Diabetic Retinopathy with and without Diabetic Macular Edema. J Clin Med 2023; 13:176. [PMID: 38202183 PMCID: PMC10779809 DOI: 10.3390/jcm13010176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
This study focuses on the interocular comparison of choroidal parameters in diabetic patients with diabetic retinopathy (DR) with and without diabetic macular edema (DME), as well as in patients with unilateral DME (present in only one eye). The aim of this study was to determine the symmetry in order to obtain better insights into the pathophysiology of diabetic choroidopathy. This retrospective single-center cross-sectional study included 170 eyes from 85 patients (61 with DR and 24 controls), divided into subgroups depending on the presence of DME. The patients underwent fluorescein angiography and spectral domain optical coherence tomography examination, and the analysis included various choroidal parameters: choroidal thickness, volume, and the choroidal vascularity index (CVI). In terms of the choroidal thickness, one eye of a patient with DR, regardless of the presence, absence, or unilaterality of DME, may be treated as representative for that patient. CVI proved symmetrical for controls and patients with DR without DME. However, there was some asymmetry of CVI in patients with bilateral or unilateral DME. There was no straightforward relationship between choroidopathy and DME. Other mechanisms were also involved in the pathogenesis.
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Affiliation(s)
| | | | | | - Diana Anna Dmuchowska
- Ophthalmology Department, Medical University of Bialystok, 24a M. Sklodowskiej-Curie, 15-276 Bialystok, Poland; (A.R.); (J.K.)
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Pietrowska K, Godlewski A, Grochowski E, Gosk W, Konopinska J, Kretowski A, Ciborowski M, Dmuchowska D. Adaptation of the AbsoluteIDQ p180 kit to the analysis of metabolites in the human aqueous humor. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1229:123880. [PMID: 37690387 DOI: 10.1016/j.jchromb.2023.123880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
The aim of this study was to use the commercial kit AbsoluteIDQ p180 (Biocrates) for the quantification of metabolites in aqueous humor (AH), as well as to determine the optimal volume of AH that is necessary to obtain reliable and reproducible results. Different volumes of AH (10 µl, 20 µl, and 30 µl) were tested. Of the 188 metabolites measurable with the Biocrates kit, 69 were detected in AH. Depending on the volume used, 41, 51, and 63 metabolites were measured using 10 µl, 20 µl, and 30 µl of AH, respectively. The repeatability of the measurements improved with increasing AH volume. Considering only those metabolites that were obtained with a CV < 15%, 34 metabolites at 10 µl, 41 at 20 µl, and 44 at 30 µl AH were received. On this basis, it can be concluded that the tested method can be successfully applied to analyze metabolites in the human AH. To achieve the most comprehensive detection range and highest repeatability of measurements, it is recommended to use 30 µl AH.
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Affiliation(s)
- Karolina Pietrowska
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland.
| | - Adrian Godlewski
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Emil Grochowski
- Department of Ophthalmology, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Wioleta Gosk
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Joanna Konopinska
- Department of Ophthalmology, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Adam Kretowski
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Michal Ciborowski
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Diana Dmuchowska
- Department of Ophthalmology, Medical University of Bialystok, 15-276 Bialystok, Poland
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Grochowski ET, Pietrowska K, Godlewski A, Gosk W, Buczynska A, Wojnar M, Konopinska J, Kretowski A, Ciborowski M, Dmuchowska DA. Simultaneous Comparison of Aqueous Humor and Serum Metabolic Profiles of Diabetic and Nondiabetic Patients Undergoing Cataract Surgery-A Targeted and Quantitative Metabolomics Study. Int J Mol Sci 2023; 24:12671. [PMID: 37628855 PMCID: PMC10454064 DOI: 10.3390/ijms241612671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
The aim of this study was to compare the aqueous humor (AH) and serum concentrations of metabolites in diabetic (n = 36) and nondiabetic (n = 36) senior adults undergoing cataract surgery. Blood samples were collected before surgery and AH during surgery. Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS)-based targeted metabolomic and lipidomic analyses of samples were performed using the AbsoluteIDQ® p180 kit. Out of 188 metabolites targeted by the kit, 41 and 133 were detected in >80% of AH and serum samples, respectively. Statistical analysis performed to indicate metabolites differentiating diabetic and nondiabetic patients showed 8 and 20 significant metabolites in AH and serum, respectively. Pathway analysis performed for significant metabolites revealed that galactose metabolism is mostly affected in the AH, while arginine biosynthesis is mostly affected in the serum. Among metabolites that differentiate diabetic and nondiabetic patients, arginine was the only metabolite common to both serum and AH samples, as well as the only one with a decreased concentration in both body fluids of diabetic patients. Concentrations of the rest were elevated in AH and lowered in serum. This may suggest different mechanisms of diabetes-related dysregulation of the local metabolism in the eye in comparison to systemic changes observed in the blood.
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Affiliation(s)
- Emil Tomasz Grochowski
- Department of Ophthalmology, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (E.T.G.); (M.W.); (J.K.)
| | - Karolina Pietrowska
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
| | - Adrian Godlewski
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
| | - Wioleta Gosk
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
| | - Angelika Buczynska
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
| | - Malgorzata Wojnar
- Department of Ophthalmology, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (E.T.G.); (M.W.); (J.K.)
| | - Joanna Konopinska
- Department of Ophthalmology, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (E.T.G.); (M.W.); (J.K.)
| | - Adam Kretowski
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland
| | - Michal Ciborowski
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (K.P.); (A.G.); (W.G.); (A.B.); (A.K.)
| | - Diana Anna Dmuchowska
- Department of Ophthalmology, Medical University of Bialystok, M. Sklodowskiej Curie 24a, 15-276 Bialystok, Poland; (E.T.G.); (M.W.); (J.K.)
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