Comparative study of the substantia nigra echogenicity and 123 I-Ioflupane SPECT in patients with synucleinopathies with and without REM sleep behavior disorder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F20%3A10412019" target="_blank" >RIV/00216208:11110/20:10412019 - isvavai.cz</a>

Alternative codes found

RIV/00064165:_____/20:10412019 RIV/68407700:21460/20:00341515 RIV/00843989:_____/20:E0108448

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FkuM9nK~rP" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FkuM9nK~rP</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sleep.2020.02.012" target="_blank" >10.1016/j.sleep.2020.02.012</a>

Result language

angličtina

Original language name

Comparative study of the substantia nigra echogenicity and 123 I-Ioflupane SPECT in patients with synucleinopathies with and without REM sleep behavior disorder

Original language description

Objectives: Hyperechogenicity of the substantia nigra (SN) and abnormal dopamine transporter-single-photon emission computed tomography (DAT-SPECT) are biomarkers commonly used in the assessment of prodromal synucleinopathy. Our goals were as follows: (1) to compare echogenicity of SN in idiopathic rapid eye movement (REM) behavior disorder (iRBD), Parkinson&apos;s disease (PD) without RBD (PD-noRBD), PD with RBD (PD + RBD), and control subjects; and (2) to examine association between SN degeneration assessed by DAT-SPECT and SN echogenicity. Patients/methods: A total of 61 subjects with confirmed iRBD were examined using Movement Disorders Society-unified PD rating scale (MDS-UPDRS), TCS (transcranial sonography) and DAT-SPECT. The results were compared with 44 patients with PD (25% PD + RBD) and with 120 age-matched healthy subjects. Results and conclusion: The abnormal SN area was found in 75.5% PD, 23% iRBD and 7.3% controls. Median SN echogenicity area in PD (0.27 +- 0.22 cm2) was higher compared to iRBD (0.07 +- 0.07 cm2; p &lt; 0.0001) and controls (0.05 +- 0.03 cm2; p &lt; 0.0001). SN echogenicity in PD + RBD was not significantly different from PD-noRBD (0.30 vs. 0.22, p = 0.15). Abnormal DAT-SPECT was found in 16 iRBD (25.4%) and 44 PD subjects (100%). No correlation between the larger SN area and corresponding putaminal binding index was found in iRBD (r = -0.13, p = 0.29), nor in PD (r = -0.19, p = 0.22). The results of our study showed that: (1) SN echogenicity area in iRBD was higher compared to controls, but the hyperechogenicity was present only in a minority of iRBD patients; (2) SN echogenicity and DAT-SPECT binding index did not correlate in either group; and (3) SN echogenicity does not differ between PD with/without RBD.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sleep Medicine

ISSN

1389-9457

e-ISSN

—

Volume of the periodical

70

Issue of the periodical within the volume

June

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

116-123

UT code for WoS article

000539995900019

EID of the result in the Scopus database

2-s2.0-85084255381