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Ocular alterations induced by hyperproteinic diet in growing rats
O Bonavolontà1, P Ferrante, G M Greco
1Istituto di Strutture Biologiche e Ultrastruttura Cellulare, Il Facoltà di Medicina e Chirurgia, Università degli Studi di Napoli.
Summary
A high-protein diet rich in animal protein can cause severe eye damage. Studies show retinal and external ocular muscle degeneration in rats fed this diet from fetal life.
Area of Science:
- Ophthalmology
- Toxicology
- Histopathology
Background:
- High-protein diets are linked to organ damage in organs with high metabolic rates.
- Previous research indicates potential adverse effects of such diets on various organs.
Purpose of the Study:
- To investigate the ocular and external ocular muscle modifications in rats exposed to a hyperproteinic diet since fetal life.
- To document the histopathological changes in the eye and ocular muscles.
Main Methods:
- Rats were fed a hyperproteinic diet (casein 40%, lactalbumin 20%) from fetal life.
- Histological studies were conducted at 60 and 80 days of age.
Main Results:
- At 60 days, vacuolar degeneration was observed in the retina's rod and cone layers and outer nuclear layer.
- By 80 days, complete retinal degeneration occurred, alongside severe fragmentation and lipid degeneration in external ocular muscles.
Conclusions:
- A hyperproteinic diet, particularly rich in animal protein, induces significant histopathological damage to the retina and external ocular muscles.
- Early and prolonged exposure to such a diet can lead to irreversible ocular damage.