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Grafting the Olfactory Epithelium to the Olfactory Bulb

Authors: Sayaka, Yagi; Richard M, Costanzo;

Grafting the Olfactory Epithelium to the Olfactory Bulb

Abstract

Background Impaired olfactory function leads to a decrease in the quality of life for many patients. Surgical treatment options are limited, especially for those suffering from hyposmia or anosmia after posttraumatic injury to the olfactory nerves. Stem cells located in the olfactory epithelium (OE) have the capacity to grow new neurons, making the OE an ideal candidate for restorative tissue grafting. This study was performed to determine if strips of OE survive transplantation directly to the olfactory bulb (OB). Methods Transgenic mice, expressing a green fluorescent protein (GFP), were used to obtain the donor graft tissue. Strips of OE from GFP donor mice were transplanted directly to sites in the OB and cerebral cortex (CC; control sites) of wild-type mice. Graft survival rates at 30 days were determined for transplant sites in the OB and CC. Results Strips of OE from transgenic mice survived transplantation to the OB and continued to express the GFP marker protein. The 30-day survival rate in the OB (83%, 5 of 6 grafts) was the same as in the CC (10 of 12 grafts). The morphology of the graft revealed characteristics found in normal OE. Conclusion We showed that strips of OE can be successfully grafted to both the OB and CC. Grafts of the OE, if strategically positioned on the ventral surface of the bulb and given access to the nasal cavity, could provide the basis for new surgical treatments to restore olfactory function.

Related Organizations
Keywords

Mice, Inbred C57BL, Mice, Olfactory Mucosa, Graft Survival, Green Fluorescent Proteins, Animals, Mice, Transgenic, Olfactory Bulb

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    18
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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
18
Top 10%
Top 10%
Average
bronze