Determination of volume of the brain and its
olfactory structures.
Recent studies in mice have shown the potential of viral gene therapy to restore
olfactory function.
They next used a method known as calcium imaging to show that the cultured taste cells respond to odour molecules in a manner similar to
olfactory receptor cells.
Indeed, deciphering how each
olfactory receptor neuron manages to activate only one of these genes -- and how this process results in such a finely tuned sense of smell -- remained mysterious for decades.
Odorants mainly use two different routes for travel toward the
olfactory epithelium, located orthonasally and retronasally.
A study carried out by scientists at the Karolinska Institutet in Stockholm, Sweden, finds that breathing through the nose, rather than the mouth, improves
olfactory memory.
Such similarities, along with extreme sensitivity of the
olfactory system, widespread presence of
olfactory receptors over all organic tissues (where they have metabolic roles besides perception of odors), and potential direct access to the brain through
olfactory nerves (ONs) and trigeminal nerves, may suggest the
olfactory system as target for HRs.
The patient was initially diagnosed with schizophrenia but later revised to
Olfactory Reference Syndrome (ORS) in view of an extensive review of her symptoms and collateral information.
Objectives: To present the clinicopathological experience of
Olfactory Neuroblastoma (ONB) with emphasis on histopathological and immunohistochemical features.
Although the exact mechanism for olfaction loss in Parkinson's disease is unknown, it is likely that olfaction dysfunction is due to changes in the central nervous system (CNS) and is not a result of damage to the peripheral
olfactory system [5].
Morris water maze test was performed to evaluate the cognitive function; buried food pellet test and
olfactory maze test were employed to investigate the
olfactory function; immunofluorescence to detect amyloid deposition and positron emission tomography to examine 2-deoxy-2-([sup]18F) fluoro-D-glucose ([[sup]18F]-FDG) uptake in the hippocampus and cerebral cortex.
The team found that African bush elephants (Loxodonta africana) carry about 2,000 genes for smell sensors, or
olfactory receptors.
These molecules come into contact with nerve cells in our nose, which send a signal to the
olfactory bulb in our brain.
To view the photo gallery, click here The technique, described as a breakthrough by a study in the journal Cell Transplantation , involved transplanting what are known as
olfactory ensheathing cells into the patient's spinal cord and constructing a "nerve bridge" between two stumps of the damaged spinal column.