PMID- 36290673 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221030 IS - 2076-3921 (Print) IS - 2076-3921 (Electronic) IS - 2076-3921 (Linking) VI - 11 IP - 10 DP - 2022 Sep 29 TI - Time-Course Changes in Oxidative Stress and Inflammation in the Retinas of rds Mice: A Retinitis Pigmentosa Model. LID - 10.3390/antiox11101950 [doi] LID - 1950 AB - (1) Background: Retinitis pigmentosa (RP) is characterized by progressive photoreceptor death. A Prph2Rd2 or an rds mouse is an RP model that closely reflects human RP. The objective of this study was to investigate the relationship of rod and cone death with oxidative stress and inflammation in rds mice. (2) Methods: The retinas of control and rds mice on postnatal days (PN) 11, 17, 21, 28, 35, and 42 were used. Oxidative damage to macromolecules, glutathione (GSH and GSSG), GSH synthesis enzymes, glial fibrillar acidic protein (GFAP), ionized calcium-binding adapter molecule 1 (Iba1), and cluster of differentiation 68 (CD68) was studied. (3) Results: The time sequence of oxidative stress and inflammation changes in rds mice occurs as follows: (i) At PN11, there is a small increase in photoreceptor death and in the microglial cells; (ii) at PN17, damage to the macromolecules is observed; (iii) at PN21, the maximum photoreceptor death rate is detected and there is an increase in GSH-GSSG and GFAP; (iv) at PN21, the microglial cells are activated; and(v) at PN28, there is a decrease in GSH synthesis enzymes. (4) Conclusions: These findings contribute to the understanding of RP physiopathology and help us to understand whether oxidative stress and inflammation are therapeutic targets. These findings contribute to our understanding that, in RP, oxidative stress and inflammation evolution and their relationship are time-dependent. In this sense, it is important to highlight that both processes are potential therapeutic targets in this disease. FAU - Canto, Antolin AU - Canto A AUID- ORCID: 0000-0002-4269-3517 AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Martinez-Gonzalez, Javier AU - Martinez-Gonzalez J AUID- ORCID: 0000-0003-2143-8338 AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Almansa, Inmaculada AU - Almansa I AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Lopez-Pedrajas, Rosa AU - Lopez-Pedrajas R AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Hernandez-Rabaza, Vicente AU - Hernandez-Rabaza V AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Olivar, Teresa AU - Olivar T AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. FAU - Miranda, Maria AU - Miranda M AD - Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115 Valencia, Spain. LA - eng GR - Consolidacion de Indicadores CEU-UCH 2021-2022 INDI21/39 y Proyectos Precompetitivos CEU 2020-2021 FUSP-BS-PPC19-19F1741D and the grants ACIF/199/2019 and FPU 20/06277/CEU Cardinal Herrera University/ PT - Journal Article DEP - 20220929 PL - Switzerland TA - Antioxidants (Basel) JT - Antioxidants (Basel, Switzerland) JID - 101668981 PMC - PMC9598580 OTO - NOTNLM OT - 8-oxoguanine OT - glutathione OT - hydroxynonenal OT - inflammation OT - macroglia OT - microglia OT - oxidative stress COIS- The authors declare no conflicts of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of the data; in the writing of the manuscript; or in the decision to publish the results. EDAT- 2022/10/28 06:00 MHDA- 2022/10/28 06:01 PMCR- 2022/09/29 CRDT- 2022/10/27 01:07 PHST- 2022/08/17 00:00 [received] PHST- 2022/09/23 00:00 [revised] PHST- 2022/09/26 00:00 [accepted] PHST- 2022/10/27 01:07 [entrez] PHST- 2022/10/28 06:00 [pubmed] PHST- 2022/10/28 06:01 [medline] PHST- 2022/09/29 00:00 [pmc-release] AID - antiox11101950 [pii] AID - antioxidants-11-01950 [pii] AID - 10.3390/antiox11101950 [doi] PST - epublish SO - Antioxidants (Basel). 2022 Sep 29;11(10):1950. doi: 10.3390/antiox11101950.