Water-soluble proteins in avian corneas were profiled by two-dimensional electrophoresis and identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Comparative protein profiling of avian and mammalian corneas revealed five major protein spots specifically detected in avian species. These proteins were identified as apolipoproteins A1 and D by tandem mass spectrometry sequencing. This is the first report of the presence of apolipoproteins in avian cornea. These results could provide insight into the role of lipid metabolism in the avian-specific function of cornea.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.exer.2011.02.004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Corneal Structure of the Yellow-Legged Gull, Larus michahellis (Naumann, 1840).
J Morphol
December 2024
Department of Biotechnology, Faculty of Science, University of Alicante, Alicante, Spain.
The cornea is the transparent part of the eye's outer sheath and the primary refractive element in the optical system of all vertebrates allowing light to focus on the central part of the retina. Maintenance of its curvature and clarity is therefore essential, providing a smooth optical surface and a protective goggle to ensure a focused image on the retina. However, the corneas of birds have been largely overlooked and the structures and mechanisms controlling corneal shape and hence visual acuity remain unknown.
View Article and Find Full Text PDFSwitchable Adhesion of Hydrogels to Plant and Animal Tissues.
Adv Sci (Weinh)
December 2024
Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.
The ability to "switch on" adhesion between a thin hydrogel and a biological tissue can be useful in biomedical applications such as surgery. One way to accomplish this is with an electric field, a phenomenon termed electroadhesion (EA). Here, it is shown that cationic gels can be adhered by EA to tissues across all of biology.
View Article and Find Full Text PDFMarek's Disease in a Flock of Japanese Quails (Coturnix japonica) in Germany.
Avian Dis
September 2024
Clinic for Birds, Reptiles, Amphibians and Fish, Justus Liebig University Giessen, 35392 Giessen, Germany.
A case of increased mortality was investigated at a German farm housing Japanese quails () for egg production. Different age groups were kept in aviaries in one barn. The quail chicks had diarrhea and the adults were emaciated, some also with diarrhea and conjunctivitis.
View Article and Find Full Text PDFExamining the fabric of the eye: Antoni van Leeuwenhoek, the draper and ocular microscopist.
Surv Ophthalmol
August 2024
Department of Ophthalmology, School of Clinical Medicine, UNSW Medicine and Health Prince of Wales Hospital, Sydney, Australia.
We review Antoni van Leeuwenhoek's (1632 - 1723) microscopic studies of comparative ocular anatomy in humans, mammals, birds, and fish. His contributions in anatomical microscopy to ocular biology has been overshadowed by his prolific work and first observations of protists and bacteria, spermatozoa, red blood cells, and dental plaque. Leeuwenhoek's Delftian optical and artisanal heritage more than compensated for any lack of formal scientific training and, in keeping with his Royal Society ethos, shone light onto the "fabric of the eye" in order to better understand its function, which he had extended with his microscopes.
View Article and Find Full Text PDFDigest: How environmental light conditions shape the evolution of visual systems in birds.
Evolution
July 2024
Committee of Evolutionary Biology, Biological Sciences Division, The University of Chicago, Chicago, IL, United States.
How do varying environmental light conditions influence the evolution of avian visual systems? Fröhlich et al. (2024) demonstrate that nocturnal birds evolved broader corneas and slightly longer axial lengths than their diurnal counterparts, increasing light capture efficiency. Nocturnal species also tended to maintain or reduce the size of brain regions responsible for vision, i.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!