Publications by authors named "Michael J Prsa"

Tension is a principal force experienced by skin and serves a critical role in growth and development. Optimal tension application regimens may be an important component for skin tissue engineering and dermatogenesis. In this study, we designed and tested a novel servo-controlled skin-stretching device to apply predetermined tension and waveforms in mice.

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Background: Mechanical forces modulate wound healing and scar formation through mechanotransduction. In response to mechanical stimulation, neuropeptides are released from peripheral terminals of primary afferent sensory neurons, influencing skin and immune cell functions and increasing vascular permeability, causing neurogenic inflammation.

Methods: A computer-controlled device was used to stretch murine skin.

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Background: The vacuum-assisted closure device is widely used clinically, yet its mechanisms of action are incompletely understood. In this study, the authors designed a partially splinted full-thickness murine vacuum-assisted closure model to better understand the mechanism of action of the vacuum-assisted closure device.

Methods: Full-thickness wounds (n = 10 per group) were excised in diabetic mice and treated with the vacuum-assisted closure device or its isolated components: an occlusive dressing, subatmospheric pressure at 125 mmHg (suction), and a polyurethane foam without and with downward compression.

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Objectives: To quantify tissue remodeling induced by static and cyclical application of tensional forces in a living perfused tissue.

Background: Cells are able to respond to mechanical cues from the environment and can switch between proliferation and quiescence. However, the effects of different regimens of tension on living, perfused skin have not been characterized.

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