Open AccessVascular Degeneration in P arkinson's Disease
Author(s) -
Guan Jian,
Pavlovic Darja,
Dalkie Nicholas,
Waldvogel Henry J.,
O'Carroll Simon J.,
Green Colin R.,
Nicholson Louise F.B.
Publication year - 2013
Publication title -
brain pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.986
H-Index - 132
eISSN - 1750-3639
pISSN - 1015-6305
DOI - 10.1111/j.1750-3639.2012.00628.x
Subject(s) - degeneration (medical) , pathology , substantia nigra , caudate nucleus , immunohistochemistry , vascular disease , medicine , parkinson's disease , anatomy , biology , disease , neuroscience
Vascular degeneration plays a significant role in contributing to neurodegenerative conditions such as A lzheimer's disease. Our understanding of the vascular components in P arkinson's disease ( PD ) is however limited. We have examined the vascular morphology of human brain tissue from both PD and the control cases using immunohistochemical staining and image analysis. The degenerative morphology seen in PD cases included the formation of endothelial cell “clusters,” which may be contributed by the fragmentation of capillaries. When compared to the control cases, the capillaries of PD s were less in number ( P < 0.001), shorter in length ( P < 0.001) and larger in diameter ( P < 0.01) with obvious damage to the capillary network evidenced by less branching ( P < 0.001). The level of degeneration seen in the caudate nucleus was also seen in the age‐matched control cases. Vessel degeneration associated with PD was, however, found in multiple brain regions, but particularly in the substantia nigra, middle frontal cortex and brain stem nuclei. The data suggest that vascular degeneration could be an additional contributing factor to the progression of PD . Thus, treatments that prevent vascular degeneration and improve vascular remodeling may be a novel target for the treatment of PD .