BACKGROUND We performed a meta-analysis of cholinesterase inhibitors for patients with Lewy body disorders, such as Parkinson's disease, Parkinson's disease dementia, and dementia with Lewy bodies. METHODS The meta-analysis included only randomized controlled trials of cholinesterase inhibitors for Lewy body disorders. RESULTS Seventeen studies (n = 1798) were assessed. Cholinesterase inhib...

Increasing interest is being shown in the link between olfaction, a complex sensory system, and cognition, particularly in the elderly. Olfaction is known to affect cognitive abilities and mood. In this article, we consider the impairment of olfactory function due to Alzheimer disease (AD), Parkinson disease (PD) and Lewy body disease (LBD), through pathological changes in the peripheral and ce...

OBJECTIVE Idiopathic REM sleep behavior disorder (RBD) is a potential preclinical marker for the development of neurodegenerative diseases, particularly Parkinson disease (PD) and Lewy body dementia. However, the long-term risk of developing neurodegeneration in patients with idiopathic RBD has not been established. Obtaining an accurate picture of this risk is essential for counseling patients...

Supercentenarians (aged 110 years old or more) are extremely rare in the world population (the number of living supercentenarians is estimated as 47 in the world), and details about their neuropathological information are limited. Based on previous studies, centenarians (aged 100-109 years old) exhibit several types of neuropathological changes, such as Alzheimer's disease and Lewy body disease...

A disabling impairment of higher-order language function can be seen in patients with Lewy body spectrum disorders such as Parkinson's disease (PD), Parkinson's disease dementia (PDD), and dementia with Lewy bodies (DLB). We focus on script comprehension in patients with Lewy body spectrum disorders. While scripts unfold sequentially, constituent events are thought to contain an internal organi...

In 1913, the Breslau neurologist Lewy described globular inclusions of cytoplasmic condensations in the cells of the nucleus substantiae innominatae and the dorsal vagal nucleus in paralysis agitans. These cell inclusions have since been described by many other investigators. In 1923, Lewy also found them in the pigmented ganglion cells of the substantia nigra in Parkinson's disease. Tretiakoff...

Fifteen cases of diffuse Lewy body disease were diagnosed on pathological grounds during a single year in one health district. The range and frequency of clinical features contrast strikingly with previous reports. The majority of cases presented with classical levodopa-responsive Parkinson's disease either alone (6 cases) or with mild cognitive impairment (3 cases); the remaining 6 cases prese...

Mutations in the gene encoding glucocerebrosidase ( GBA1 ) cause Gaucher disease (GD), a lysosomal storage disease with recessive inheritance. Glucocerebrosidase (GCase) is a lysosomal lipid hydrolase that digests glycolipid substrates, such as glucosylceramide and glucosylsphingosine. GBA1 mutations have been implicated in Lewy body diseases (LBDs), such as Parkinson ’ s disease and dementia w...

In 1913, the Breslau neurologist Lewy described globular inclusions of cytoplasmic condensations in the cells of the nucleus substantiae innominatae and the dorsal vagal nucleus in paralysis agitans. These cell inclusions have since been described by many other investigators. In 1923, Lewy also found them in the pigmented ganglion cells of the substantia nigra in Parkinson's disease. Tretiakoff...