High frequency (>or= 100 Hz) bursts of action potentials (APs) generated by neocortical neurons are thought to increase information content and, through back-propagation, to influence synaptic integration and efficacy in distal dendritic compartments. It was recently shown in acute slice experiments that intrinsic bursting properties differ between neocortical L2/3 and L5B (thick tufted) neuron...

Contact between sensory axons and their targets is critical for the development and maintenance of normal neural circuits. Previous work indicates that the removal of afferent contact to the olfactory bulb affects bulb organization, neurophenotypic expression, and cell survival. The studies also suggested changes to the structure of individual cell types. The current work examines the effects o...

Tufted ducks habitually dive for their food and may remain submerged for up to 40 s. Mallards, on the other hand, merely upend themselves for_ a few seconds when dabbling. It was decided, therefore, to determine the size of the oxygen storage compartments in these two aquatic birds. Haemoglobin concentration, blood volume, and volume of the respiratory system are all significantly larger in the...

UNLABELLED Tufted angioma, first recognized in Japanese literature as "Angioblastoma of Nagakawa", is a rare benign vascular tumour with a variable clinical presentation. It commonly manifests as a macule, papule or nodule in infancy or childhood in the region of the upper trunk and neck. Here in we report two cases of this rare progressive angioma as lesions of the eyelid in adults. Tufted ang...

BACKGROUND Tufted angioma (known in Japanese literature as angioblastoma of Nakagawa) is an uncommon, histologically benign, vascular tumor. Lesions typically present during infancy or early childhood and are most commonly reported to persist and/or expand over time. Congenital presentations are rare, as are reports of spontaneous regression. OBSERVATIONS We present a series of 5 histopatholo...

Tufted angioma is a rare vascular tumor most commonly localized to the skin and subcutaneous tissues and characterized by slow angiomatous proliferation. Although adult-onset cases, with subcutaneous manifestations but not the deep presentation, have been fewly described, tufted angiomas occur far more frequently in children. These tumors have a benign course, with no reported cases of aggressi...

BACKGROUND Mitral and tufted cells are the projection neurons in the olfactory bulb, conveying odour information to various regions of the olfactory cortex. In spite of their functional importance, there are few molecular and genetic tools that can be used for selective labelling or manipulation of mitral and tufted cells. Tbx21 was first identified as a T-box family transcription factor regula...

Tufted hemangiomas are relatively rare benign vascular proliferations that are congenital or appear during the first years of life. Herein we present an additional case of tufted hemangioma that appeared one year after birth and discuss its histopathological criteria and differential diagnosis with malignant vascular proliferations including sarcoma Kaposi, angiosarcoma and kaposiform hemangioe...

Recent work in the anterior piriform cortex (aPCX) has demonstrated that cortical odor receptive fields are highly dynamic, showing rapid changes of both firing rate and temporal patterning within relatively few inhalations of an odor, despite relatively maintained, patterned input from olfactory bulb mitral/tufted cells. The present experiment examined the precision (odor-specificity) of this ...