Effects of voluntary and forced physical exercise on the retinal health of aging Wistar rats DOI Creative Commons

Anna Szilágyi,

Barbara Takács,

Réka Szekeres

et al.

GeroScience, Journal Year: 2024, Volume and Issue: 46(5), P. 4707 - 4728

Published: May 25, 2024

Aging is accompanied by an increased prevalence of degenerative conditions, including those affecting ocular health, which significantly impact quality life and increase the burden on healthcare systems. Among these, retinal aging particular concern due to its direct link vision impairment, a leading cause disability in elderly. Vision loss population associated with heightened risks cognitive decline, social isolation, morbidity. This study addresses critical gap our understanding modifiable lifestyle factors, such as physical exercise, that may mitigate related pathologies. We investigated effects different exercise regimens-voluntary (recreational-type) forced (high-intensity)-on health Wistar rats (18-month-old), serving model for studying translational potential interventions humans. Male were divided into four groups: young control (3-month-old) baseline comparison, aged sedentary control, group engaging voluntary via running wheel their cage, subjected treadmill six sessions 20 min each per week. After 6-month experimental period, we assessed function electroretinography (ERG), measured thickness histologically, analyzed protein expression changes relevant oxidative stress, inflammation, anti-aging mechanisms. Our findings reveal positively impacts morphology, reducing stress inflammation markers while enhancing expression. In contrast, showed diminished benefits. These insights underscore importance intensity preference preserving during aging. The highlights recreational activity non-invasive strategy counteract aging, advocating further research regimens preventative therapies age-related degenerations.

Language: Английский

ROS-responsive drug delivery system with enhanced anti-angiogenic and anti-inflammatory properties for neovascular age-related macular degeneration therapy DOI Creative Commons
Jingjing Zuo,

Yining Pan,

Yuanli Wang

et al.

Materials Today Bio, Journal Year: 2025, Volume and Issue: unknown, P. 101757 - 101757

Published: April 1, 2025

Language: Английский

Citations

0

Exposure to air pollutants contributes to increased rate of neovascular age-related macular degeneration in Israel DOI Creative Commons
Alon Sela,

Rinat Levinshtein,

Shiri Shulman

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(4), P. e0317436 - e0317436

Published: April 18, 2025

Age-related macular degeneration (AMD) is a multi-factorial degenerative disease of the retina and leading cause for vision loss in developed world. Air pollution considered greatest environmental threat to public health globally. Accumulating evidence indicates that air may be modifiable risk factor chronic eye diseases lens retina, including AMD. We examined concentration seven particles their influence on prevalence neovascular AMD Israel. Records patients with between 2016 2019 were crossed residential areas correlated data. rates 5 types gas: nitrogen dioxide (NO 2 ), oxide (NO), carbon monoxide (CO), ozone (O 3 sulphur (SO particulate matter - PM 2.5 10 . A total 93 localities across Israel included analysis. higher greater pollution. NO , x positively rates, while O was negatively rates. However, analysis effect all pollutant combined, showed complex highly non-linear rate, strongest non-linearity observed monoxide. NO2, NOx, PM2.5 contribute rate seems have protective role (probably due ultraviolet filtering) The interaction pollutants should further studied.

Language: Английский

Citations

0

Use of SGLT2 Inhibitors Versus DPP-4 Inhibitors and Age-Related Macular Degeneration in Patients WithType 2 Diabetes: A Multinational Cohort Study DOI Creative Commons
Ssu-Yu Pan, Chien‐Hsiang Weng,

Shang-Feng Tsai

et al.

Investigative Ophthalmology & Visual Science, Journal Year: 2025, Volume and Issue: 66(4), P. 58 - 58

Published: April 21, 2025

To compare the impact of sodium-glucose cotransporter 2 (SGLT2) and dipeptidyl peptidase 4 (DPP-4) inhibitors on age-related macular degeneration (AMD) risk among patients with type diabetes mellitus (T2DM). This multinational, retrospective cohort study used electronic medical records from healthcare institutions across 21 countries. Adults 50 years or older T2DM who had a prior prescription metformin initiated SGLT2 DPP-4 2013 to 2023 were included. The inhibitor groups propensity score matched in 1:1 ratio balance baseline characteristics followed for up 5 observe occurrence AMD. Statistical analysis was performed using Cox proportional hazards model Kaplan-Meier analysis. Our final included 20,966 prescribed inhibitors. Compared group, group associated significantly lower risks AMD (hazard [HR], 0.71; 95% confidence interval [CI], 0.58-0.85) dry (HR, 0.61; CI, 0.46-0.80) but not wet 0.74; 0.48-1.16). compared linked reduced White population, empagliflozin dapagliflozin, individuals glycated hemoglobin < 8.5%, estimated glomerular filtration rate ≥ 60 mL/min/1.73 m2, hypertension, dyslipidemia, regardless body mass index level. In T2DM, those may experience

Language: Английский

Citations

0

Assessment of Inter-Device Agreement in Quantifying Choriocapillaris Flow Deficits in Healthy Eyes DOI
Giacomo Boscia, Ramya Gnanaraj, Giulia Corradetti

et al.

Current Eye Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 7

Published: May 23, 2025

To compare the computation of choriocapillaris flow deficit obtained from three different optical coherence tomography angiography devices in healthy subjects. Twenty-six subjects were included this post hoc analysis data a prospective subject study. Fovea-centered 6 × volume scans by all devices: Heidelberg Spectralis spectral domain (Heidelberg, Germany) using full spectrum probabilistic algorithm (512 512 pixels); Zeiss Cirrus 5000 AngioPlex (Zeiss Meditec, Dublin, CA) (spectral domain-optical angiography) microangiography (350 350 PLEX Elite 9000 swept source (500 500 pixels). Choriocapillaris slabs binarized Image J (Bethesda, MD) and % was measured applying Phansalkar radius ∼20 µm, adjusted for each device based on size resolution images. eyes 26 with no ocular or systemic disease analysis. The mean age 47.60 ± 13.00 (range, 26-69) years 46.15% females. varied significantly other (p < .01). highest at 57.00% (±13.21%), followed Angioplex 25.70% (±9.00%), Plex 7.62 (±3.06%). There significant positive correlation between source-optical (Angioplex Elite) (r = 0.78, p Of note, better than two algorithms (Spectralis, Heidelberg, Germany, microangiography) 0.389, .04). same is algorithms.

Language: Английский

Citations

0

Effects of voluntary and forced physical exercise on the retinal health of aging Wistar rats DOI Creative Commons

Anna Szilágyi,

Barbara Takács,

Réka Szekeres

et al.

GeroScience, Journal Year: 2024, Volume and Issue: 46(5), P. 4707 - 4728

Published: May 25, 2024

Aging is accompanied by an increased prevalence of degenerative conditions, including those affecting ocular health, which significantly impact quality life and increase the burden on healthcare systems. Among these, retinal aging particular concern due to its direct link vision impairment, a leading cause disability in elderly. Vision loss population associated with heightened risks cognitive decline, social isolation, morbidity. This study addresses critical gap our understanding modifiable lifestyle factors, such as physical exercise, that may mitigate related pathologies. We investigated effects different exercise regimens-voluntary (recreational-type) forced (high-intensity)-on health Wistar rats (18-month-old), serving model for studying translational potential interventions humans. Male were divided into four groups: young control (3-month-old) baseline comparison, aged sedentary control, group engaging voluntary via running wheel their cage, subjected treadmill six sessions 20 min each per week. After 6-month experimental period, we assessed function electroretinography (ERG), measured thickness histologically, analyzed protein expression changes relevant oxidative stress, inflammation, anti-aging mechanisms. Our findings reveal positively impacts morphology, reducing stress inflammation markers while enhancing expression. In contrast, showed diminished benefits. These insights underscore importance intensity preference preserving during aging. The highlights recreational activity non-invasive strategy counteract aging, advocating further research regimens preventative therapies age-related degenerations.

Language: Английский

Citations

3