Speech, Voice, and Communication

Tongue and laryngeal exercises improve tongue strength and vocal function outcomes in a Pink1-/- rat model of early Parkinson disease

Parkinson disease (PD) causes voice and swallow dysfunction even in early stages of the disease. Treatment of this dysfunction is limited, and the neuropathology underlying this dysfunction is poorly defined. Targeted exercise provides the greatest benefit for offsetting voice and swallow dysfunction, and previous data suggest the hypoglossal nucleus and noradrenergic-locus coeruleus (LC) may be involved in its early pathology. To investigate relationships between targeted exercise and neuropathology of voice and swallow dysfunction, we implemented a combined exercise paradigm that included tongue force and vocalization exercises early in the Pink1-/- rat model. We tested the hypotheses that (1) tongue and vocal exercise improves tongue force and timing behaviors and vocalization outcomes, and (2) exercise increases optical density of serotonin (5-HT) in the hypoglossal nucleus, and tyrosine hydroxylase immunoreactive (Th-ir) cell counts in the LC. At two months of age Pink1-/- rats were randomized to exercise or non-exercise treatment. Age-matched wildtype (WT) control rats were assigned to non-exercise treatment. Tongue force and timing behaviors and ultrasonic vocalizations were measured at baseline (two months) and final (four months) timepoints. Optical density of 5-HT in the hypoglossal nucleus and TH-ir cell counts in the LC were obtained. Pink1-/- rats produced greater tongue forces, faster tongue contraction, and higher-intensity vocalization following exercise. There were no differences in LC TH-ir. The non-exercised Pink1-/- group had reduced density of 5-HT in the hypoglossal nucleus compared to the WT control group. The changes to tongue function and vocalization after targeted exercise suggests exercise intervention may be beneficial in early PD.

Clair KA, Toledo S, York MK, Todaro R, Yarab N, Wallock K. Delivering Multidisciplinary Rehabilitation Care in Parkinson's Disease: An International Consensus Statement

BACKGROUND

Parkinson's disease (PD) is a complex neurodegenerative disorder impacting everyday function and quality of life. Rehabilitation plays a crucial role in improving symptoms, function, and quality of life and reducing disability, particularly given the lack of disease-modifying agents and limitations of medications and surgical therapies. However, rehabilitative care is under-recognized and under-utilized in PD and often only utilized in later disease stages, despite research and guidelines demonstrating its positive effects. Currently, there is a lack of consensus regarding fundamental topics related to rehabilitative services in PD.

OBJECTIVE

The goal of the international Parkinson's Foundation Rehabilitation Medicine Task Force was to develop a consensus statement regarding the incorporation of rehabilitation in PD care.

METHODS

The Task Force, comprised of international multidisciplinary experts in PD and rehabilitation and people directly affected by PD, met virtually to discuss topics such as rehabilitative services, existing therapy guidelines and rehabilitation literature in PD, and gaps and needs. A systematic, interactive, and iterative process was used to develop consensus-based statements on core components of PD rehabilitation and discipline-specific interventions.

RESULTS

The expert-based consensus statement outlines key tenets of rehabilitative care including its multidisciplinary approach and discipline-specific guidance for occupational therapy, physical therapy, speech language pathology/therapy, and psychology/neuropsychology across all PD stages.

CONCLUSIONS

Rehabilitative interventions should be an essential component in the comprehensive treatment of PD, from diagnosis to advanced disease. Greater education and awareness of the benefits of rehabilitative services for people with PD and their care partners, and further evidence-based and scientific study are encouraged.

COMPREHENSIVE APPROACH IN CORRECTIONAL WORK WITH OLDER PRESCHOOL CHILDREN WITH SPEECH DISORDERS

OBJECTIVE

The aim: To investigate the effectiveness of comprehensive approach in correctional work with older preschool children with speech disorders.

PATIENTS AND METHODS

Materials and methods: The research was conducted in 2018-2022. The research involved 250 children aged 5-7 years, who were divided into two groups. The experimental group consisted of 150 children with motor alalia (57 girls and 93 boys). The control group consisted of 100 children without speech disorders (48 girls and 52 boys).

RESULTS

Results: The analysis of outpatient cards of children with speech disorders of various aetiology was carried out. The main results of a comprehensive medical as well as psychological and pedagogical examination of children with motor alalia are highlighted. The result of the research revealed that organic lesion of the brain affects not only the clinical presentation of nonverbal symptoms, but also psychospeech development, in particular.

CONCLUSION

Conclusions: The expediency of using a comprehensive diagnostic methodology was proved, where the medical component consisted in studying the peculiarities of bioelectrical activity of the brain on electroencephalography, which reflects the process of its morphological maturation in ontogenesis.

[Parkinsonism-associated speech disorders]

OBJECTIVE

To study clinical and neurophysiological features of speech disorders in PD, multisystem atrophy (MSA) and progressive supranuclear palsy (PNP).

MATERIAL AND METHODS

Thirty-one patients with PD and 14 patients with MSA and PSP were examined. The Unified rating scale for Parkinson's disease of the International movement disorders society (MDS-UPDRS) and a neurophysiological analysis of speech disorders using acoustic spectral analysis of voice and speech according to the method of Jan Rusz et al (2004) were used.

RESULTS

Patients with PD showed a parallel increase in the severity of axial motor disorders (hypomimia, walking disorders, postural disorders) and speech disorders. Patients with MSA and PSP differ not only from the PD patients but also among themselves by clinical presentations (motor, autonomic, cognitive) and speech disorders.

CONCLUSION

The clinical and neurophysiological features of speech disorders in patients with various variants of parkinsonism will be useful in the differential diagnosis of these diseases and can be used in developing approaches to patient rehabilitation.