Clinical Neuroscience

[Numbers, counting and calculating problems in view of cognitive neurology]

MÁRKUS Attila

MARCH 24, 2010

Clinical Neuroscience - 2010;63(03-04)

[The ability to count and calculate is a human-specific skill comprised of understanding numeric values and categories and performing numerical operations; it is an acoustic-verbal symbolic activity that may be expressed in writing and understood by reading. The neuronal bases and precursors of cognitive systems have been supplied to mankind by the process of evolution. Abilities to create symbols (speech, visual letter and number symbols) must have played a decisive role in the emergence of man from the world of primates. Although counting and calculating problems are classified into numerous types, two main forms of dyscalculia have practical importance: the acquired one (the loss of learned knowledge) and the developmental one (the disturbance of the acquisition of arythmetical knowledge).]

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Clinical Neuroscience

[Comment of the invited editor]

FOLYOVICH András

[Comment of the invited editor 2010;63(03-04)]

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[Differential diagnosis of atypical Parkinsonian syndromes]

CSÓTI Ilona, FORNÁDI Ferenc

[Atypical Parkinson syndromes are distinguished from idiopathic Parkinson disease by insufficient or missing response to dopaminergic replacement therapy and therefore they have significantly unfavorable prognoses. Early differential diagnosis is very important for the patient. It enables the therapist to give suitable consults, to avoid unnecessary or inappropriate therapy, which are not free of medication side effects and furthermore facilitates the selection of adapted symptomatically medical and physical measures of treatment. In case of future development of neuroprotective or causally therapy strategies correct diagnosis will allow an early start of therapy. The differential diagnosis separation of the three clinical pictures from the idiopathic Parkinson disease with clinical criteria might be difficult in the early stage of disease. Additional neuroimaging and nuclear medical investigations may support the clinical probable diagnosis.]

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[Frontotemporal dementia or frontotemporal lobar degeneration - Overview of a group of proteinopathies]

CATHERINE Haberland

[Frontotemporal dementia is the second most common early onset dementia after Alzheimer disease. Frontotemporal dementias are a complex group of dementias. The clinical diagnosis can be perplexing because of concurring psychiatric and neurologic syndromes. Frontotemporal lobar degeneration, the underlying pathology, represents an emerging group of proteinopathies. Genetic factors play an important part in the etiologies of dementias. This article overviews current defining characteristics of frontotemporal dementias known also as frontotemporal lobar degenerations]

Clinical Neuroscience

[Vertigo - comorbidity with psychiatric disorders]

FAZEKAS András

[Vertigo is one of the most common symptom and complaint in the clinical practice. The differential diagnosis can only be attained by a careful interdisciplinary way of thinking and activity, given the fact that the vestibular, neurological and psychiatric disorders - considered as pathogenic factors - are being present simultaneously in triggering the symptoms, and there can be overlaps between the certain pathological processes. The author deals with the co-morbidity of the vertigo and the psychiatric symptoms - anxiety, panic-disorder -, pointing out the common neurobiological and neurophysiological factors in the background of the symptoms, emphasizing the importance of the SSRI-s in the restoration of the serotonerg dysfunction.]

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[Neuron to glia - 15 years history of the cytoplasmic]

PAPP Mátyás

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We aimed to investigate the association between fluoxetine use and the survival of hospitalised coronavirus disease (COVID-19) pneumonia patients. This retrospective case-control study used data extracted from the medical records of adult patients hospitalised with moderate or severe COVID-19 pneumonia at the Uzsoki Teaching Hospital of the Semmelweis University in Budapest, Hungary between 17 March and 22 April 2021. As a part of standard medical treatment, patients received anti-COVID-19 therapies as favipiravir, remdesivir, baricitinib or a combination of these drugs; and 110 of them received 20 mg fluoxetine capsules once daily as an adjuvant medication. Multivariable logistic regression was used to evaluate the association between fluoxetine use and mortality. For excluding a fluoxetine-selection bias potentially influencing our results, we compared baseline prognostic markers in the two groups treated versus not treated with fluoxetine. Out of the 269 participants, 205 (76.2%) survived and 64 (23.8%) died between days 2 and 28 after hospitalisation. Greater age (OR [95% CI] 1.08 [1.05–1.11], p<0.001), radiographic severity based on chest X-ray (OR [95% CI] 2.03 [1.27–3.25], p=0.003) and higher score of shortened National Early Warning Score (sNEWS) (OR [95% CI] 1.20 [1.01-1.43], p=0.04) were associated with higher mortality. Fluoxetine use was associated with an important (70%) decrease of mortality (OR [95% CI] 0.33 [0.16–0.68], p=0.002) compared to the non-fluoxetine group. Age, gender, LDH, CRP, and D-dimer levels, sNEWS, Chest X-ray score did not show statistical difference between the fluoxetine and non-fluoxetine groups supporting the reliability of our finding. Provisional to confirmation in randomised controlled studies, fluoxetine may be a potent treatment increasing the survival for COVID-19 pneumonia.

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Clinical Neuroscience

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Clinical Neuroscience

[The role of sleep in the relational memory processes ]

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[A growing body of evidence suggests that sleep plays an essential role in the consolidation of different memory systems, but less is known about the beneficial effect of sleep on relational memory processes and the recognition of emotional facial expressions, however, it is a fundamental cognitive skill in human everyday life. Thus, the study aims to investigate the effect of timing of learning and the role of sleep in relational memory processes. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. Our results suggest that the timing of learning and sleep plays an important role in the stabilizing process of memory representation to resist against forgetting.]