Results: 62

Memory impairment: an intermediate clinical syndrome symptom in HTLV-1-infected patients?

Arq. neuropsiquiatr; 77 (6), 2019
Background Although classical human T-cell lymphocyte virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis syndrome is the most frequent HTLV-1-associated neurological disorder, some "minor" neurological disorders can be seen in "asymptomatic" carriers. These disorders, including cog...

Component mechanisms of executive function in schizophrenia and their contribution to functional outcomes

Rev. bras. psiquiatr; 41 (1), 2019
Objective: In schizophrenia, scores reflecting deficits in different cognitive processes are strongly correlated, making it difficult to establish a solid relationship between different cognitive mechanisms and other features of this disorder. The objective of this study was to explore whether three freq...

Assessment of serotonergic system in formation of memory and learning

Braz. j. biol; 78 (3), 2018
Abstract We evaluated the involvement of the serotonergic system on memory formation and learning processes in healthy adults Wistar rats. Fifty-seven rats of 5 groups had one serotonergic nuclei damaged by an electric current. Electrolytic lesion was carried out using a continuous current of 2mA during ...

Longitudinal analysis of verbal episodic memory in patients with relapsing-remitting multiple sclerosis

Arq. neuropsiquiatr; 76 (5), 2018
ABSTRACT Objective: A 4.5-year follow-up study was conducted to characterize baseline verbal episodic memory (VEM) and its behavior and to assess the effects of relapsing-remitting multiple sclerosis (RRMS) on this domain. Methods: Twenty-nine patients with RRMS underwent two neuropsychological assessm...

Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease

Arq. neuropsiquiatr; 76 (2), 2018
ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25,...

Thymoquinone reverses learning and memory impairments and brain tissue oxidative damage in hypothyroid juvenile rats

Arq. neuropsiquiatr; 76 (1), 2018
ABSTRACT In this study, the effect of thymoquinone (TQ) on propylthiouracil (PTU)-induced memory impairment was investigated in juvenile rats. The rats were grouped into control, Hypo, Hypo-TQ5 and Hypo-TQ10. Propylthiouracil increased latency time in the Morris water maze test and decreased delay in ent...

Cognitive function among older adults: ELSI-Brazil results

Rev. saúde pública (Online); 52 (supl.2), 2018
ABSTRACT OBJECTIVE To investigate macroregional variations in cognitive function in a national sample representative of the Brazilian population aged 50 years and older. METHODS Data from the baseline of the Longitudinal Study of Brazilian Elderly (ELSI-Brazil), collected between 2015 and 2016, were ...

Integrity of white matter structure is related to episodic memory performance in the low-educated elderly

Arq. neuropsiquiatr; 75 (11), 2017
ABSTRACT The low-educated elderly are a vulnerable population in whom studying the role of white matter integrity on memory may provide insights for understanding how memory declines with aging and disease. Methods: Thirty-one participants (22 women), 23 cognitively healthy and eight with cognitive impa...

Health Conditions and Memory Performance: a study with older adult women

Rev. bras. enferm; 70 (3), 2017
ABSTRACT Objective: to verify the correlation between health condition and memory performance of older adult women in the community. Method: Analytical cross-sectional study developed with 28 older adult women living in Cuiabá-MT. They answered the Mini-Mental State Examination (MMSE), and a shortened...

The brain-derived neurotrophic factor (BDNF) gene Val66Met polymorphism affects memory performance in older adults

Objective: Memory impairment is an important contributor to the reduction in quality of life experienced by older adults, and genetic risk factors seem to contribute to variance in age-related cognitive decline. Brain-derived neurotrophic factor (BDNF) is an important nerve growth factor linked with deve...