APRIL 11, 2019 – WELT PARKINSON TAG

Der 11. April ist Welt-Parkinson-Tag, und in diesem Monat finden auf der ganzen Welt Veranstaltungen statt, um das Bewusstsein und die lebensnotwendigen Mittel für die Erforschung besserer Behandlungen und letztendlich einer Heilung zu erhöhen.

Die Beziehung zwischen Licht und Parkinson wurde bereits intensiv erforscht. Viele Studien bieten Hoffnung mit vielversprechenden Ergebnissen. Der Lichtexperte Toine Schoutens forscht bei Propeaq an der Erforschung der Einsichten von spezifischem blauem Licht in die Bandbreite der Propan-Propeaq-Brille. Die Ergebnisse dieser Studien werden für dieses Jahr erwartet.

Blaulicht-Therapiebrillen bei Parkinson-Patienten Erfahrung: Hindawi-Parkinson-Krankheit: Bastiaan Bloem PhD, Daniel van Wamelen PhD, Katarzyna Smilowska PhD von der Abteilung für Neurologie, Radboud University Nijmegen (NL) und Toine Schoutens  von Chrono Eyewear BV , Tilburg die Niederlande. Volume 2019 |Article ID 1906271 | 4 pages | https://doi.org/10.1155/2019/1906271

Die Schlussfolgerungen in dieser Studie sind vielversprechend.

TOINE SCHOUTENS

Lichtexperte und Gründer von Propeaq

BLUE LIGHT THERAPY GLASSES IN PARKINSON’S DISEASE: PATIENTS’ EXPERIENCE

Abstract

Background. Blue light glasses have been introduced as a possible new treatment option to treat sleep disturbances in patients with Parkinson disease (PD). Assessing patient attitudes represents a key step in the road towards formal testing and introduction into clinical practice. Specifically, we aimed to assess how patients experience the use of blue light glasses, aiming to optimise compliance in upcoming clinical trials where these glasses will be tested for efficacy. Methods. We invited 58 PD patients who had used the blue light glasses for at least one week on a daily basis to complete an online survey about their experiences and self-reported impact. For this purpose, the System Usability Scale was used, supplemented with additional questions about (side)effects. A total of 31 patients (53%) replied. Results. 74% of respondents reported subjective improvements in night-time sleep, daytime sleepiness, depressive symptoms, motor functioning, or a combination thereof. The median score for the System Usability Scale (SUS; 0–100 range, higher scores indicating better performance) was 70.0. A total of 26 patients (84%) had an overall positive attitude towards the technique, with patients rating the glasses with an average score of 6.9 ± 2.0 (SD) out of 10. Except for one patient, all responders would like to continue using the glasses, mostly because they considered it a useful aid. Conclusion. Blue light therapy appears to have a positive effect on sleep, mood, and motor symptoms in PD. PD patients had an overall positive attitude towards blue light glasses as treatment for sleep disorders.

Derzeit läuft eine randomisierte, placebokontrollierte Phase-II-Studie, deren Ergebnisse in den kommenden Monaten erwartet werden. Wir werden diese Ergebnisse teilen, sobald die Studie veröffentlicht ist.

MORE RESEARCH

Light is the most potent environmental cue regulating majority of behavioural and physiological functions (LeGates et al., 2014). Accordingly, light therapy has been widely applied to improve several disorders including circadian misalignment, depression, sleep disorders and cognitive dysfunction (Schroeder and Colwell, 2013; LeGates et al., 2014). All these disturbances may co-exist with PD syndrome (Chaudhuri et al., 2006; Chaudhuri and Schapira, 2009) and are therefore expected to benefit from appropriate light regimes.
Potential insights from the use of light therapy in animal models of PD are discussed in Box 2. In the PD population, six studies so far have assessed the safety and therapeutic efficacy of light therapy (Willis and Turner, 2007; Paus et al., 2007; Willis et al., 2012; Rios Romenets et al., 2013;Videnovic et al., 2017; Martino et al., 2018).

In 2007, two studies were published (Willis and Turner, 2007; Paus et al., 2007). Willis et al. exposed 12 PD patients to 1–1.5 h of bright light pulses of 1.000–1.500 Lux in intensity 1 h before bedtime during 1 to 5 weeks (Willis and Turner, 2007). The investigators reported significant improvement of motor function including bradykinesia and rigidity. Tremor was not improved by light therapy. Bright light therapy had an anti-depressant effect that lasted several weeks following treatment and was exteriorised by increased socialisation. Subjective self-assessment of sleep habits showed also significant improvement (Willis and Turner, 2007).

Another study by Paus et al. was a randomized, placebo-controlled and double-blind pilot clinical trial of light therapy (Paus et al., 2007). The experimental group consisting of 18 PD patients received 30 min of bright light of 7.500 lx and was compared to 18 PD patients receiving placebo light pulses of 950 lx. Light was administered 1 h after awakening daily for 2 weeks. Patients receiving bright light showed improvement in depression. With the exception of a slight attenuation of tremor, no improvements were reported in motor symptoms (i.e. bradykinesia and rigidity). Regarding the sleep-wake cycles, the function assessed was excessive daytime sleepiness that improved with light therapy in both the active and placebo group with no significant in between-group difference. Although showing promising results, the main limitation of these two studies was the short-term duration of light administration which may explain the modest treatment effects and preclude any conclusion regarding the safety and efficacy of the desirable long-term administration of light therapy to PD patients in routine clinical settings (Willis and Turner, 2007; Paus et al., 2007).

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