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Updated: May 12, 2026
Retinal Pathophysiological Evaluation in a Rat Model
Published on: May 6, 2022
Hazardous effects of fried potato chips on the development of retina in albino rats
Hassan I El-Sayyad1, Saber A Sakr, Gamal M Badawy
1Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt.
Insights
Fried potato chips significantly harm developing rat retinas, causing cell damage and structural deformities. These toxic effects on retinal development may be linked to acrylamide exposure.
Area of Science:
- Ophthalmology
- Toxicology
- Developmental Biology
Background:
- Fried potato chips are a popular snack worldwide.
- Potential health risks associated with processed foods, particularly acrylamide content, are a growing concern.
Purpose of the Study:
- To investigate the detrimental effects of fried potato chips on the developing retina in albino rats.
- To assess retinal damage at two critical developmental stages (7 and 14 days postpartum).
Main Methods:
- Pregnant rats were fed a diet containing 50% fried potato chips from gestation day 6.
- Retinal tissues from offspring (7 and 14 days postpartum) were analyzed using histological, ultrastructural, and proteomic techniques.
Main Results:
- Histopathology revealed retinal degeneration, vacuolization, cell loss in the ganglion cell layer, and reduced retinal size.
- Ultrastructural analysis showed deformities in nuclear layers, pigment epithelium, photoreceptors, and choriocapillaris.
- Proteomic analysis indicated significant protein expression variations, confirming toxic effects on retinal development.
Conclusions:
- Fried potato chips induce significant histopathological and ultrastructural damage to the developing rat retina.
- Acrylamide or its metabolites are likely responsible for the observed toxic effects on retinal development.
Objective:
To evaluate the hazardous effects of fried potato chips upon the retina of two developmental stages of the albino rats aged 7 and 14 days from parturition.
Methods:
PREGNANT RATS WERE ARRANGED INTO TWO GROUPS: control pregnant rats and consequently their delivered newborns until reaching 7 and 14 days old from parturition and fried potato chips group in which pregnant rats at the 6th day of gestation maintained on diet formed of fried potato chips supplied from the market mixed with standard diet at a concentration of 50% per each till 7 and 14 post-partum. Three fold integrated approaches were adopted, namely, histological, ultrastructural and proteomic analysis.
Results:
Histological examination of the retina of the experimental offsprings revealed many histopathological changes, including massive degeneration, vacuolization and cell loss in the ganglion cell layer, as well as general reduction in retinal size. At the ultrastructural level, the retina of experimental offsprings exhibited number of deformities, including ill differentiated and degenerated nuclear layer, malformed and vacuolated pigment epithelium with vesiculated and fragmented rough endoplasmic reticulum, degenerated outer segment of photoreceptors, as well as swollen choriocapillaris and loss of neuronal cells. Proteomic analysis of retina of the two experimental developmental stages showed variations in the expressed proteins as a result of intoxication which illustrated the adverse toxic effects of fried potato chips upon the retina.
Conclusions:
It can be concluded that the effect of fried potato chips on the development of retina in rats may be due to the presence of acrylamide or its metabolite.
