Contribution of functional dopamine D2 and D3 receptor variants to motor and non-motor symptoms of early onset Parkinson’s disease

2020 ◽  
Vol 199 ◽  
pp. 106257
Author(s):  
Isil Ezgi Eryilmaz ◽  
Sevda Erer ◽  
Mehmet Zarifoglu ◽  
Unal Egeli ◽  
Ece Karakus ◽  
...  
2016 ◽  
Vol 42 (1-2) ◽  
pp. 17-30 ◽  
Author(s):  
Ana Natalia Seubert-Ravelo ◽  
M. Guillermina Yáñez-Téllez ◽  
Hermelinda Salgado-Ceballos ◽  
Rodrigo Erick Escartín-Pérez ◽  
Gabriel Adolfo Neri-Nani ◽  
...  

Background/Aims: Few studies have described mild cognitive impairment (MCI) and cognitive characteristics in early-onset Parkinson's disease (EOPD). This study describes attention/working memory, language, memory, visuospatial abilities, executive function, and frequency of MCI and dementia in EOPD. Methods: Eighty-one EOPD patients were administered neuropsychological tests and the Beck Depression Inventory. Scores were compared with age/education-appropriate norms and were correlated to years of disease progression and severity of motor symptoms. The frequency of MCI and dementia was determined by the Movement Disorder Society criteria. Results: Thirty-one percent of patients met the MCI criteria, but none had dementia. Commonly affected domains were memory, visuospatial, and executive function. Cognitive dysfunction was not explained by depression or severity of motor symptoms. Conclusion: One third of EOPD patients presented with MCI, which was not associated with the same risk factors as reported in late-onset Parkinson's disease. MCI could have a different prognostic value in EOPD.


2005 ◽  
Vol 32 (S 1) ◽  
Author(s):  
A Janzen ◽  
B Winner ◽  
M Lange ◽  
Z Kohl ◽  
K Pfeifer ◽  
...  

2018 ◽  
Vol 34 (1) ◽  
pp. 133-137 ◽  
Author(s):  
Joanne Trinh ◽  
Katja Lohmann ◽  
Hauke Baumann ◽  
Alexander Balck ◽  
Max Borsche ◽  
...  

2021 ◽  
pp. 1-15
Author(s):  
Eduardo Tolosa ◽  
Georg Ebersbach ◽  
Joaquim J. Ferreira ◽  
Olivier Rascol ◽  
Angelo Antonini ◽  
...  

Background: A greater understanding of the everyday experiences of people with Parkinson’s disease (PD) and their carers may help improve clinical practice. Objective: The Parkinson’s Real-world Impact assesSMent (PRISM) study evaluated medication use, health-related quality of life (HRQoL) and the use of healthcare resources by people with PD and their carers. Methods: PRISM is an observational cross-sectional study, in which people with PD and their carers completed an online survey using structured questionnaires, including the Parkinson’s Disease Quality of Life Questionnaire (PDQ-39), Non-Motor Symptoms Questionnaire (NMSQuest) and Zarit Burden Interview (ZBI). Results: Data were collected from 861 people with PD (mean age, 65.0 years; mean disease duration, 7.7 years) and 256 carers from six European countries. People with PD reported a large number of different co-morbidities, non-motor symptoms (mean NMSQuest score, 12.8), and impaired HRQoL (median PDQ-39 summary score, 29.1). Forty-five percent of people with PD reported at least one impulse control behaviour. Treatment patterns varied considerably between different European countries. Levodopa was taken in the last 12 months by 85.9% of participants, and as monotherapy by 21.8% . Carers, who were mostly female (64.8%) and the partner/spouse of the person with PD (82.1%), reported mild to moderate burden (mean ZBI total score, 26.6). Conclusions: The PRISM study sheds light on the lives of people with PD and those who care for them, re-emphasising the many challenges they face in everyday life. The study also provides insights into the current treatment of PD in Europe.


Author(s):  
Hamdy N. El-Tallawy ◽  
Tahia H. Saleem ◽  
Wafaa M. Farghaly ◽  
Heba Mohamed Saad Eldien ◽  
Ashraf Khodaery ◽  
...  

Abstract Background Parkinson’s disease is one of the neurodegenerative disorders that is caused by genetic and environmental factors or interaction between them. Solute carrier family 41 member 1 within the PARK16 locus has been reported to be associated with Parkinson’s disease. Cognitive impairment is one of the non-motor symptoms that is considered a challenge in Parkinson’s disease patients. This study aimed to investigate the association of rs11240569 polymorphism; a synonymous coding variant in SLC41A1 in Parkinson’s disease patients in addition to the assessment of cognitive impairment in those patients. Results In a case -control study, rs11240569 single nucleotide polymorphisms in SLC41A1, genes were genotyped in 48 Parkinson’s disease patients and 48 controls. Motor and non-motor performance in Parkinson's disease patients were assessed by using the Movement Disorder Society-Sponsored Revision of the Unified Parkinson’s Disease Rating Scale (MDS-UPDRS). The genotype and allele frequencies were compared between the two groups and revealed no significant differences between case and control groups for rs11240569 in SLC41A1 gene with P value .523 and .54, respectively. Cognition was evaluated and showed the mean ± standard deviation (SD) of WAIS score of PD patients 80.4 ± 9.13 and the range was from 61 to 105, in addition to MMSE that showed mean ± SD 21.96 ± 3.8. Conclusion Genetic testing of the present study showed that rs11240569 polymorphism of SLC41A1 gene has no significant differences in distributions of alleles and genotypes between cases and control group, in addition to cognitive impairment that is present in a large proportion of PD patients and in addition to the strong correlation between cognitive impairment and motor and non-motor symptoms progression.


2021 ◽  
Author(s):  
Shilpan G. Patel ◽  
Christina M. Buchanan ◽  
Eoin Mulroy ◽  
Mark Simpson ◽  
Hannah A. Reid ◽  
...  

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