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These findings refine and extend our understanding of the natural history and individual spectrum/manifestations of WD. Initially, there is asymptomatic hepatic involvement which may progress and become symptomatic. Neurologic symptoms present many years later. This article is protected by copyright. All rights reserved.

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Autonomic and sensory nerve dysfunctions are frequent in PBC. Twenty-four-hour HRV analysis is more sensitive than standard cardiovascular tests for detecting of both parasympathetic and sympathetic impairments. Our novel data suggest that hyperaesthesia is a characteristic feature of peripheral sensory neuropathy and might contribute to itching in PBC. Autonomic dysfunction is related to the duration and severity of PBC.

The mechanisms and role of elevated osteoprotegerin and low RANKL in PBC are unclear, but it might partly represent a compensatory mechanism to negative balance of bone remodeling. High OPG and RANKL levels found in CHC might suggest that inflammatory process in the liver could also contribute to the elevation of osteoprotegerin.