Dementia has enormous implications for patients and the health care system. Genetic markers are promising for detecting the risk of cognitive impairment. We hypothesized that genetic variants associated with suicide risk might significantly increase the risk of cognitive decline because suicide in older adults is often a consequence of cognitive impairment. We investigated several single-nucleotide polymorphisms that were initially associated with suicide risk in dementia older adults and identified the APOE gene alleles. The study was performed with subjects over the age of 65: 112 patients with dementia and 146 healthy volunteers. The MMSE score was used to assess cognitive functions. Study participants were genotyped using real-time PCR (APOE: rs429358, rs7412; genes associated with suicide: rs9475195, rs7982251, rs2834789, rs358592, rs4918918, rs3781878, rs10903034, rs165774, rs16841143, rs11833579 rs10898553, rs7296262, rs3806263, and rs2462021). Genotype analysis revealed the significance of APOEε4, APOEε2, and rs4918918 (SORBS1) when comparing dementia and healthy control groups. The association of APOEε4, APOEε2, and rs10903034 (IFNLR1) with the overall MMSE score was indicated. The study found an association with dementia of rs4918918 (SORBS1) and rs10903034 (IFNLR1) previously associated with suicide and confirmed the association of APOEε4 and APOEε2 with dementia.
The article provides an analysis of underlying problems in diagnosing a cognitive decline and dementia in the early stages among older adults. The reasons for postponing the treatment of patients with cognitive impairment to specialized specialists examined. Indications given of the macrosocial (stigmatization of mental disorders in general and dementia in society particularly, costs of the period until the deinstitutionalization of psychiatry), microsocial (psychological structure in the family) aspects of postponing treatment to a psychiatrist. Using the experience of Moscow memory clinics the principles of psychoeducation implementation described as well as the mechanisms of interaction between psychiatrists and general practitioners analyzed.
Background: the development of programs for the correction of cognitive impairment in elderly patients with various types of mild cognitive decline is an urgent task of geriatric medicine and clinical psychology. The aim of the study was to conduct neuropsychological and psychometric evaluation of the results of a modified neurorehabilitation program (combination of full time and part time studies) in patients of the “Memory Clinic”. Patients and methods: a total of 114 patients (mean age 73 years) with mild cognitive impairment was studied. Neuropsychological and psychometric evaluation of the dynamics of the cognitive sphere in patients with mild cognitive decline (MCI) before and after participation (week 6) in the full-time/part-time neurorehabilitation program at the “Memory Clinic” was carried out. For psychometric assessment, the Mini-mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA) were used. The neuropsychological study was carried out using the “Express Method for the Study of Cognitive Functions at a Late Age” (N.K. Korsakova et al.). For psychometric assessment, the Mini-mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA) were used. The neuropsychological study was carried out using the “Express Method for the Study of Cognitive Functions at a Late Age” (N.K. Korsakova, E.Yu. Balashova, I.F. Roshchina). Results: using the method of multivariate analysis of variance (MANOVA), a statistically significant effect (p < 0.05) of the neurorehabilitation program on psychometric tests (MMSE, MoCA) and on the total score of the “Express Methods for the Study of Cognitive Functions at a Late Age”, as well as on its subscales —verbal memory, visual memory, semantic memory, dynamic, spatial and regulatory praxis was detected. Conclusions: a psychometric and neuropsychological study showed the effectiveness of a full time/part-time neurocognitive rehabilitation program for patients with mild cognitive decline under conditions of limited visits to the Memory Clinic during the COVID-19 pandemic.
Background. The COVID-19 pandemic is a major stressor with predictable negative impacts on mental health, especially for vulnerable populations, which include older people. Emotional disorders, a decrease in intellectual, physical, social activity are the risk factors for the development of cognitive decline in older people; in the situation of the COVID-19 pandemic, the influence of all these factors is exacerbated. In this regard, it seems relevant to study the level of emotional disorders and factors affecting the emotional state of patients with mild cognitive impairment (MCI) in the context of the COVID-19 pandemic in comparison with the period before the pandemic. Aims: emotional state assessment in patients over 55 years old with MCI during the COVID-19 pandemic and identification of factors influencing the emotional state of these patients. Materials and methods: A cross-sectional single-center observational study of patients with MCI who applied to the Memory Clinic in the autumn of 2018 (n = 121), 2019 (n = 114), in the autumn of 2020 (n = 70), and in the spring of 2020 (n = 110). Patients were examined using the Hospital Anxiety and Depression Scale (HADS), the Montreal Cognitive Assessment (MoCA), the MiniMental State Examination (MMSE), and the Khachinsky Modified Ischemia Assessment Scale. In 2020, in addition to these scales, a questionnaire Personal experience of COVID-19 pandemic was applied to assess the experience associated with the new coronavirus infection. Results: The severity of emotional disorders, assessed by HADS scale, did not differ between groups (F = 0.751; p = 0.522 and F = 0.310; p = 0.818 for the HADS anxiety and depression subscales, respectively). Adjustment for covariates (scores on the Khachinsky and/or MoCA and/or MMSE scales) did not affect the significance of differences between groups on the HADS subscales, regardless of the correction for multiple comparisons. Pathway modeling analysis demonstrated the low ability of the models to predict emotional state based on risk factors (age, gender, Khachinsky score) and cognitive symptoms (MoCA and MMSE scores) all coefficients r 0.7. A change in intellectual activity (decrease) and subjective impression of the difficulties obtaining medical care were associated with a higher score on the HADS anxiety scale. Decreased physical health and decreased personal communication were associated with higher scores on the HADS depression scale. Clinically pronounced changes in the emotional state were noted only in relation to anxiety, which depended on the changes in intellectual activity. Conclusions: severity of anxiety and depression was not increased in patients with MCI, regardless of the control of additional factors. No differences were found in the contribution of risk factors (age, gender, vascular and atrophic factors of cognitive decline) and cognitive dysfunction to the formation of emotional disorders in comparing with previous years.
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