Right putamen and age are the most discriminant features to diagnose Parkinson's disease by using 123I-FP-CIT brain SPET data by using an artificial neural network classifier, a classification tree (ClT).
Right putamen and age are the most discriminant features to diagnose Parkinson's disease by using 123I-FP-CIT brain SPET data by using an artificial neural network classifier, a classification tree (ClT). Hell J Nucl Med. 2017 Sep-Dec;20 Suppl:165 Authors: Cascianelli S, Tranfaglia C, Fravolini ML, Bianconi F, Minestrini M, Nuvoli S, Tambasco N, Dottorini ME, Palumbo B Abstract OBJECTIVE: The differential diagnosis of Parkinson's disease (PD) and other conditions, such as essential tremor and drug-induced parkinsonian syndrome or normal aging brain, represents a diagnostic challenge. 123I-FP-CIT brain SPET is able to contribute to the differential diagnosis. Semiquantitative analysis of radiopharmaceutical uptake in basal ganglia (caudate nuclei and putamina) is very useful to support the diagnostic process. An artificial neural network classifier using 123I-FP-CIT brain SPET data, a classification tree (CIT), was applied. CIT is an automatic classifier composed of a set of logical rules, organized as a decision tree to produce an optimised threshold based classification of data to provide discriminative cut-off values. We applied a CIT to 123I-FP-CIT brain SPET semiquantitave data, to obtain cut-off values of radiopharmaceutical uptake ratios in caudate nuclei and putamina with the aim to diagnose PD versus other conditions. SUBJECTS AND METHOD: We retrospectively investigated 187 patients undergoing 123I-FP-CIT brain SPET (Millenium VG, G.E.M.S.) wi...
Abstract Disturbances in both the ability to smell and to taste are common in older persons. Such disturbances influence nutrition, safety, quality of life, and psychological and physical health. The anatomic and physiologic causes of age-related disturbances are multiple and interacting, and depend on genetic and environmental factors. Frank losses of function, distortions, and hallucinations are common. Most distortions resolve over time, although this can take months or even years. Olfactory dysfunction occurs during the earliest stages of several neurologic disorders, most notably Alzheimer's disease and Parki...
Publication date: 14 July 2018Source: New Scientist, Volume 239, Issue 3186Author(s): Clare Wilson
Authors: Ramirez-Zamora A Abstract Although levodopa is effective for treating Parkinson disease, physicians and patients face significant management challenges related to disease progression. Patients may develop fluctuations in motor symptoms and dyskinesias as well as nonmotor symptoms. Review this CME Brief Report activity to learn about new and emerging treatment options to manage patients' symptoms. PMID: 29999254 [PubMed - in process]
ConclusionWe found CI-related hypermetabolism in cerebellar regions that are known to be involved in several cognitive functions and in the pons. These alterations may represent compensatory activation of cognitive networks including cerebropontocerebellar tracts.
Purpose Neuroimaging indicators of Parkinson disease have been developed and applied in clinical practices. Dopaminergic imaging reflects nigrostriatal dopaminergic dysfunction, and metabolic network imaging offers disease-related metabolic changes at a system level. We aimed to elucidate the association between Parkinsonian symptoms and neuroimaging, and interactions between different imaging techniques. Methods We conducted a dual-tracer PET study for the combined assessments of dopaminergic binding (11C-CFT) and glucose metabolism (18F-FDG) in 103 participants with Parkinson disease (65 male and 38 female subjects)...
ACS Chemical NeuroscienceDOI: 10.1021/acschemneuro.8b00245
(University of Wisconsin-Madison) A new way to examine stress and inflammation in the heart will help Parkinson's researchers test new therapies and explore an unappreciated way the disease puts people at risk of falls and hospitalization.
(American Society for Biochemistry and Molecular Biology) Researchers at the UT Southwestern Medical Center have uncovered details of how cells invite inside corrupted proteins that can turn normal proteins corrupt, leading to neurodegenerative diseases such as Alzheimer's and Parkinson's diseases. Understanding the molecular details of how these proteins spread from cell to cell could lead to therapies to halt disease progression.
(Bentham Science Publishers) Arranging into well-organized fibrillar aggregate, commonly known as amyloid fibril is an inherent property of any polypeptide chain. Amyloid fibrils are associated with a number of severe human pathologies like the Alzheimer's disease, Parkinson's disease, type 2 diabetes and many more. This review article includes the recent studies of identification and characterization of possible conformations of proteins which can act as aggregation precursor state (APS).
CONCLUSION: Considering that PD is chronic, rehabilitation programs should be applied to address not just functional but also psychosocial needs of PD patients. CLINICAL RELEVANCE: Early recognition and management of psychological distress in PD patients is indispensable to promote their HRQOL. PMID: 30005001 [PubMed - as supplied by publisher]