The contribution of Alois Alzheimer and Oskar Fischer to the understanding of Pick's complex - (Historical Note) / A contribuição de Alois Alzheimer e Oskar Fischer para a compreensão do complexo de Pick - (Nota Histórica)

Arnold Pick described a series of cases with progressive aphasia, behavioural disorders, and dementia. The post-mortem examination revealed on macroscopy, beside diffuse brain atrophy, also circumscribed (lobar) atrophy of the temporal and/or frontal lobes. The histopathology was not provided. Such kind of cases were soon named after the author, being known for a time as 'Pick's disease', coming to constitute a new nosological group. A time later after the original description, Alois Alzheimer and Oskar Fischer completed microscopic examination of similar cases, where the first author found, on silver impregnation, spheric neuronal inclusions, he named 'argentophilic ball' inclusions, while the second one identified complex cortical changes he named 'spongiform cortical wasting', and additionally a type of swollen cell that was named 'ballooned neuron'. Such microscopic changes became the first histopathological markers of this group of diseases.

Arnold Pick descreveu uma série de casos apresentando, de modo progressivo, afasia, transtornos de comportamento e demência. O exame pós-morte revelou à macroscopia, além de atrofia cerebral difusa, também atrofia circunscrita (lobar) dos lobos temporais e/ou frontais. A histopatologia não foi fornecida. Tal tipo de casos foi logo denominado segundo o autor, sendo conhecido por um período como 'doença de Pick', vindo a constituir um novo grupo nosológico. Algum tempo após a discrição original, Alois Alzheimer e Oskar Fischer perfizeram exame microscópio de casos semelhantes, onde o primeiro autor encontrou inclusões neuronais esféricas à impregnação pela prata, que denominou de 'bola argirofílica', enquanto o segundo identificou alterações corticais complexas às quais denominou 'perda cortical espongiforme', além de um tipo de célula tumefeita que chamou de 'neurônio balonizado'. Tais alterações microscópicas tornaram-se os primeiros marcadores histopatológicos desse grupo de doenças.

Effects of physical exercise on cognition and glymphatic system of patients with mild cognitive impairment or Alzheimer's disease ­ study protocol

Objective: To evaluate the impact of a multicomponent physical exercise program on clinical variables associated with the glymphatic clearance system, sleep-awake patterns, and cognitive function in individuals with mild cognitive impairment or mild Alzheimer's disease. Methods: This is a single-center parallel randomized controlled trial involving pre- and post-intervention assessments. The intervention consists of a 12 (±3)-week multicomponent aerobic and resistance physical exercise program of moderate intensity divided into 2 groups: an experimental group (undergoing multicomponent training) and a control group (no intervention). Eligible participants are those diagnosed with probable mild cognitive impairment or mild Alzheimer's disease. Expected results: Anticipated outcomes suggest that the multicomponent training protocol, incorporating both aerobic and resistance physical exercises at a moderate intensity, will yield improvements in glymphatic clearance dynamics, sleep-awake parameters, and performance on cognitive, functional, and behavioral tasks among eligible patients. Relevance: The need to move beyond cognitive clinical testing justifies our trial, which proposes an assessment employing neuroimaging techniques and the analysis of biomarkers present in cerebrospinal fluid in conjunction with clinical tests for physical and cognitive assessment. (AU)

Adaptation and reliability of tests of functional mobility and muscle strength using telehealth for older people with dementia / Adaptação e confiabilidade de testes de mobilidade funcional e força muscular para idosos com demência por meio de telessaúde

Objective: Adapt functional mobility and muscle strength tests for older people with dementia to be performed remotely in the home environment; determine intra-rater and inter-rater reliability of functional mobility and strength tests for older people with dementia; and correlate the performance on the physical tests executed remotely and the Timed Up and Go (TUG) test, which was validated remotely in healthy older people. Methods: We included 43 people with dementia. The Short Physical Performance Battery (SPPB), TUG, TUG Dual Task (TUG-DT), and 30-Second Sit-to-Stand Test (SST30s) were performed through videocalls. Test performance was documented to facilitate the subsequent determination of inter- and intra-rater reliability. The intra-rater reliability was determined at a 2-week interval from the real-time videocall to analysis of the recording. Results: Intra-rater reliability ranged from good to excellent for all tests performed (ICC 0.862­1.000). Inter-rater reliability values were fair for gait speed (ICC = 0.223), moderate for some of the SPPB items (ICC = 0.706­0.801), good for the SPPB two-foot balance (ICC = 0.860) and the SPPB total score (ICC = 0.831), and excellent for the rest of the tests. Conclusion: Functional mobility and muscle strength tests proved reliable and feasible for remote, at-home assessments of older people with dementia when assisted by their respective caregivers, providing an additional alternative for assessment of this patient population. (AU)

Medical and forensic aspects of performing a remote interrogation of persons with disabilities / Aspectos médicos y forenses de la realización de un interrogatorio a distancia a personas con discapacidad / Aspectos médicos e forenses da realização de um interrogatório remoto de pessoas com deficiências

The purpose of the study is to develop new proposals for improving criminal procedural legislation in the field of conducting remote investigative actions with disabled persons, taking into account their physiological and functional characteristics. Research material and methods: This study is based on an analysis of the norms regarding the criminal procedural legislation of the Republic of Kazakhstan and a number of foreign states that regulate the procedure for conducting remote investigative actions - as well as scientific publications on the research topic in the field of psychology and medicine. An integrated approach involves considering the studied phenomena of communication during an investigative action as a set of interconnected and interdependent elements, i.e., consideration of the issue from the medical, psychological and legal points of view. Situational and systemic types of analysis, complex sociological analysis, diagnostics and forecasting investigative situation were also used. Methods of analysis and synthesis, induction, deduction, methods of qualitative and quantitative analysis were employed to clarify the legal essence of the studied phenomenon. Findings: practical recommendations aimed at improving and developing the performance of remote investigative actions involving persons with disabilities (further ­ FWDs) y creating optimal conditions for the transfer of verbal, medical, and psychological information, as well as technical and forensic support for conducting RIAs. The following conclusions were made: in order to improve the current legislation, it is advisable to consider the issue of developing and including a special norm in the legislation, taking into account the characteristics of the communicative competencies of persons with disabilities. This norm regulates the procedure for conducting investigative actions involving the mute, deaf, blind and other persons with disabilities.

El objetivo del estudio es elaborar nuevas propuestas de mejora de la legislación procesal penal en el ámbito de la realización de actuaciones de investigación a distancia con personas con discapacidad, teniendo en cuenta sus características fisiológicas y funcionales. Material y métodos de investigación: Este estudio se basa en un análisis de las normas relativas a la legislación procesal penal de la República de Kazajstán y de una serie de Estados extranjeros que regulan el procedimiento para llevar a cabo acciones de investigación a distancia -, así como publicaciones científicas sobre el tema de investigación en el campo de la psicología y la medicina. Un enfoque integrado implica considerar los fenómenos estudiados de comunicación durante una acción de investigación como un conjunto de elementos interconectados e interdependientes, es decir, considerar la cuestión desde los puntos de vista médico, psicológico y jurídico. También se utilizaron los tipos de análisis situacional y sistémico, el análisis sociológico complejo, el diagnóstico y la previsión de la situación de investigación. Se emplearon métodos de análisis y síntesis, inducción, deducción, métodos de análisis cualitativo y cuantitativo para aclarar la esencia jurídica del fenómeno estudiado. Conclusiones: recomendaciones prácticas destinadas a mejorar y desarrollar la realización de acciones de investigación a distancia en las que participen personas con discapacidad (en adelante - RIA) y crear condiciones óptimas para la transferencia de información verbal, médica y psicológica, así como apoyo técnico y forense para la realización de las RIA. Se llegó a las siguientes conclusiones:con el fin de mejorar la legislación actual, es aconsejable considerar la cuestión de desarrollar e incluir una norma especial en la legislación, teniendo en cuenta las características de las competencias comunicativas de las personas con discapacidad. Esta norma regula el procedimiento para llevar a cabo acciones de investigación en las que estén implicadas personas mudas, sordas, ciegas y otras personas con discapacidad.

O objetivo do estudo é desenvolver novas propostas para aprimorar a legislação processual penal no campo da realização de ações investigativas remotas com pessoas com deficiência, levando em conta suas características fisiológicas e funcionais. Material e métodos de pesquisa: Este estudo baseia-se em uma análise das normas relativas à legislação processual penal da República do Cazaquistão e de vários países estrangeiros que regulamentam o procedimento para a realização de ações investigativas remotas, bem como em publicações científicas sobre o tópico de pesquisa no campo da psicologia e da medicina. Uma abordagem integrada envolve a consideração dos fenômenos estudados de comunicação durante uma ação investigativa como um conjunto de elementos interconectados e interdependentes, ou seja, a consideração da questão dos pontos de vista médico, psicológico e jurídico. Também foram usados tipos de análise situacional e sistêmica, análise sociológica complexa, diagnóstico e previsão da situação investigativa. Métodos de análise e síntese, indução, dedução, métodos de análise qualitativa e quantitativa foram empregados para esclarecer a essência legal do fenômeno estudado. Resultados: recomendações práticas com o objetivo de aprimorar e desenvolver o desempenho de ações investigativas remotas envolvendo pessoas com deficiência (mais adiante - FWDs), criando condições ideais para a transferência de informações verbais, médicas e psicológicas, bem como suporte técnico e forense para a realização de RIAs. Foram feitas as seguintes conclusões: para aprimorar a legislação atual, é aconselhável considerar a questão do desenvolvimento e da inclusão de uma norma especial na legislação, levando em conta as características das competências comunicativas das pessoas com deficiência. Essa norma regulamenta o procedimento para conduzir ações investigativas envolvendo pessoas mudas, surdas, cegas e outras pessoas com deficiência.

Factores de riesgo y biomarcadores de la enfermedad de Alzheimer / Risk factors and biomarkers of Alzheimer's disease

Introducción: La enfermedad de Alzheimer, constituye un problema sanitario y social de gran magnitud; precisa de diagnóstico y terapéutica precoces. Se realizó una búsqueda de artículos sobre factores de riesgo y biomarcadores de la enfermedad en las bases de datos PubMed/Medline, Scopus, Scielo y Lilacs, y mediante el buscador Google académico; desde el año 2017 hasta el 2023, en idioma español, inglés y portugués. Objetivo: Analizar los factores de riesgo y los biomarcadores de la enfermedad de Alzheimer. Desarrollo: Los principales factores de riesgo encontrados son edad avanzada, menor educación, poca actividad física, hábito de fumar, consumo excesivo de alcohol, hipertensión arterial, diabetes, obesidad, depresión, pérdida o disminución de la audición, aislamiento social, los traumas craneales y la contaminación ambiental. Los biomarcadores fundamentales son: los marcadores que se utilizan en los estudios de neuroimágenes como la PET Amiloide, PET tau, PET FDG; y en LCR y plasma: Aß42, Aß42/Aß40, p tau 217, p tau 181, GFAP, y neurofilamentos de cadena ligeras. Conclusiones: Se requieren estudios longitudinales, a partir de la presencia de los factores de riesgo asociados a biomarcador, desde edades pregeriátricas en pacientes sanos, que tengan como salidas el deterioro cognitivo y el desarrollo de la demencia, para construir un modelo de predicción(AU)

Introduction: Alzheimer's disease is a health and social problem of great magnitude; it requires early diagnosis and therapy. A search for articles on risk factors and biomarkers of the disease was conducted; in the databases PubMed/Medline, Scopus, Scielo and Lilacs, and through the Google scholar search engine; from 2017 to 2023, in Spanish, English and Portuguese. Objective: To analyze the risk factors and biomarkers of Alzheimer's disease. Development: The main risk factors found are advanced age, lower education, little physical activity, smoking, excessive alcohol consumption, high blood pressure, diabetes, obesity, depression, hearing loss or decrease, social isolation, head trauma and environmental pollution. The fundamental biomarkers are: markers used in neuroimaging studies such as amyloid PET, tau PET, FDG PET; and in CSF and plasma: Aß42, Aß42/Aß40, p tau 217, p tau 181, GFAP, and light chain neurofilaments. Conclusions: Longitudinal studies are required, based on the presence of risk factors associated with biomarkers, from pregeriatric ages in healthy patients, which have cognitive impairment and the development of dementia as outputs, to build a prediction model(AU)

FNDC5/Irisin in dementia and cognitive impairment: update and novel perspective

Epidemiological surveys show that the incidence of age-related dementia and cognitive impairment is increasing and it has been a heavy burden for society, families, and healthcare systems, making the preservation of cognitive function in an increasingly aging population a major challenge. Exercise is beneficial for brain health, and FDNC5/irisin, a new exercise-induced myokine, is thought to be a beneficial mediator to cognitive function and plays an important role in the crosstalk between skeletal muscle and brain. This review provides a critical assessment of the recent progress in both fundamental and clinical research of FDNC5/irisin in dementia and cognitive impairment-related disorders. Furthermore, we present a novel perspective on the therapeutic effectiveness of FDNC5/irisin in alleviating these conditions.

Desenvolvimento de aplicativo móvel para cuidadores sobre higiene bucal em demência e disfagia / Desarrollo de aplicación móvil para cuidadores sobre higiene bucal en demencia y disfagia / Development of a mobile application for caregivers on oral hygiene in dementia and dysphagia

Os autores relatam a experiência do processo de desenvolvimento do protótipo de um aplicativo sobre higiene bucal de idosos com demência, com atenção especial aos que apresentam disfagia, voltado à orientação dos seus cuidadores. Objetivou, também, descrever o papel desta experiência como estratégia de ensino interprofissional e de inovação social a estudantes de Odontologia e Fonoaudiologia. Realizou-se estudo qualitativo do tiporelato de experiência, com informações originadas de narrativas verbais e registro escrito e iconográfico dos autores dessa pesquisa, bem como de relatos escritos de duas revisoras do protótipo do aplicativo ­ambas especialistas em Gerontologia. Para o protótipo, utilizou-se o site SeuApp.com, sem necessidade de programação, gerando formato de aplicativo e site para desktop e celular. O produto foi desenvolvido em três fases, concluído com êxito, e avaliado positivamente pelas pareceristas. Seu conteúdo incluiu informações escritas e iconográficas, estáticas e dinâmicas, referentes à importância e "passo a passo" da higiene bucal, suas relações com saúde e disfagia, e cuidados específicos diante dessa, além de um "Guia do Aplicativo" e "Feedback". A experiência relatada demonstrou que a construção do aplicativo se deu com êxito e avaliação positiva por pareceristas, com contribuição social almejada. Os discentes e docentes de Odontologia e de Fonoaudiologia envolvidos ampliaram suas habilidades na inovação e nas competências interprofissionais. Mais estudos sobre a inovação na graduação em saúde são requeridos, por se tratar de uma área em expansão no mercado, tendo grande contribuição para atualização dos profissionais da saúde (AU).

Los autores relatan la experiencia del proceso de desarrollo del prototipo de una aplicación sobre higiene bucal para personas mayores con demencia, con especial atención a aquellas con disfagia, con el objetivo de orientar a sus cuidadores. También tuvo como objetivo describir el papel de esta experiencia como estrategia de enseñanza interprofesional e innovación social para estudiantes de Odontología y Logopedia. Se realizó un estudio cualitativo del tipo relato de experiencia, con informaciones provenientes de relatos verbales y registros escritos e iconográficos de los autores de esta investigación, así como relatos escritos de dos revisores del prototipo de la aplicación, ambos especialistas en Gerontología. Para el prototipo se utilizó el sitioweb SeuApp.com, sin necesidad de programación, generando un formato de aplicación y sitio web para escritorio y celular. El producto fue desarrollado en tres fases, completado con éxito y evaluado positivamente por los revisores. Su contenido incluía información escrita e iconográfica, estática y dinámica, referente a la importancia y el "paso a paso" de la higiene bucal, sus relaciones con la salud y la disfagia, y los cuidados específicos ante esta, además de una "Guía de Aplicación" y "Comentarios". La experiencia relatada demostró que la construcción de la aplicación fue exitosa y fue evaluada positivamente por los revisores, con la contribución social deseada. Los estudiantes y profesores de Odontología y Logopedia involucrados ampliaron sus habilidades en innovación y competencias interprofesionales. Se requiere más estudios en innovación en la graduación en salud, ya que es un área en expansión en el mercado, con un gran aporte para la actualización de los profesionales de la salud (AU).

The authors report the experience of developing the prototype of an application on oral hygiene for elderly individuals with dementia, with special attention to those with dysphagia, aimed at guiding their caregivers. The purpose was also to describe the role of this experience as a strategy for interprofessional education and social innovation for dentistry and speech-language pathology students. A qualitative study of the experience was conducted, gathering information from verbal narratives and written and iconographic records of the researchers, as well as written reports from two reviewers of the application prototype­both experts in Gerontology. The website SeuApp.com website was used for the prototype, which required no programming, generating an application format and a website for desktop and mobile. The product was developed in three phases, successfully completed, and positively evaluated by the reviewers. Its content included written and iconographic information, static and dynamic, regarding the importance and step-by-step process of oral hygiene, its relationships with health and dysphagia, and specific care in the face of the latter, along with an "App Guide" and "Feedback." The reported experience demonstrated that the application's construction was successful and positively evaluated by reviewers, thus achieving the intended social contribution. Dentistry and speech-language pathology students and faculty involved expanded their skills in innovation and interprofessional competencies. Given itsexpanding presence in the market and significant contribution to the ongoing education of healthcare professionals, further studies on innovation in health education are required (AU).

Inhibidores de la bomba de protones: el impacto en la salud cognitiva de los adultos mayores / Proton pump inhibitors: the impact on cognitive health in older adults

RESUMEN Los inhibidores de la bomba de protones (IBP) son los medicamentos más potentes para inhibir la secreción gástrica ácida, y se utilizan en el tratamiento de la mayor parte de las afecciones inflamatorias de la mucosa gástrica. Forman parte de los fármacos más recetados y sobreprescritos en todo el mundo; por ejemplo, en los Estados Unidos, según la Encuesta nacional de salud y nutrición, casi duplicaron su uso en los adultos de 40 años de un 4,9 % hasta un 8,3 %, entre los años 1999 a 2012. Aunque, en general, se consideran bien tolerados, algunos estudios epidemiológicos ―que extraen información a partir de grandes bases de datos― han reportado una serie de efectos adversos asociados con su uso prolongado, entre los cuales están el deterioro cognitivo, la enfermedad renal crónica, el infarto de miocardio, el accidente cerebrovascular, las fracturas óseas e incluso la muerte, entre otros. El objetivo fue realizar una revisión narrativa de la literatura acerca de los efectos del uso crónico de los IBP sobre el deterioro cognitivo en los adultos mayores. Se revisaron artículos a partir de una búsqueda en las bases de datos Pudmed, Scopus y Scielo con las palabras clave y términos Mesh/DeCS relacionados tanto en inglés como en español. Los efectos secundarios a nivel neurológico inducidos por el uso crónico de los IBP pueden estar relacionados indirectamente con la presencia de alteraciones sistémicas secundarias (deficiencia de magnesio y vitamina B12) o con efectos directos sobre el funcionamiento neuronal después de pasar a través de la barrera hematoencefálica. Si bien se han descrito varios mecanismos neurobiológicos por medio de los cuales los IBP podrían favorecer el desarrollo de la demencia ―que comprenden el funcionamiento de la proteína tau, la acumulación de beta amiloide (βA) y la deficiencia de cobalamina, entre otros―, la mayor parte de la evidencia clínica disponible no ha encontrado una asociación significativa entre el uso de los IBP y el riesgo de demencia o el deterioro cognitivo. Para establecer de una manera más clara los efectos clínicos adversos del uso crónico de los IBP, en especial, en el funcionamiento cerebral, se necesitan estudios de cohorte bien diseñados, con tamaños de muestra grandes y periodos de seguimiento prolongados, con un método confiable para ajustar los factores de confusión estandarizados y, además, realizar análisis por subgrupos.

ABSTRACT Proton pump inhibitors (PPIs) are the most potent drugs to inhibit gastric acid secretion, being used in the treatment of most inflammatory conditions of the gastric mucosa. They are among the most prescribed and overprescribed medications worldwide; for example, in the United States, according to the National Health and Nutrition Examination Survey, they almost doubled their use in adults aged 40 years and older from 4.9 % to 8.3 % between 1999 and 2012. Although they are generally considered well tolerated, some epidemiological studies extracting information from large databases have reported a number of adverse effects associated with their prolonged use, including cognitive impairment, chronic kidney disease, myocardial infarction, stroke, bone fractures and even death, among others. The objective was to conduct a narrative review of the literature on the effects of chronic use of PPIs on cognitive impairment in older adults. Articles were reviewed based on a search in the PubMed, Scopus and SciELO databases using both English and Spanish keywords and related MeSH/DeCS terms. Neurological side effects induced by chronic PPI use may be indirectly related to secondary systemic disorders (magnesium and vitamin B12 deficiency) or to direct effects on neuronal functioning after passing through the blood-brain barrier. Although several neurobiological mechanisms by which PPIs could favor the development of dementia-which involve Tau protein function, beta-amyloid [βA] accumulation and cobalamin deficiency, among others-have been described, most of the available clinical evidence has not shown a significant association between PPI use and the risk of dementia or cognitive impairment. To establish the adverse clinical effects of chronic PPI use more clearly, especially on brain functioning, well-designed cohort studies with large sample sizes and long follow-up periods, with a reliable method to adjust for standardized confounders, as well as subgroup analyses are needed.

Research Progress on Mechanisms of Triggeringreceptor Expressed on Myeloid Cells-2 in Cognitive Dysfunction / 中山大学学报(医学科学版)

The neuroimmune system is crucial for the development， aging， and damage of the central nervous system， and has gradually become a research hotspot. Triggeringreceptor expressed on myeloid cells-2 （TREM2） is a transmembrane receptor of the immunoglobulin superfamily and is mainly expressed in the microglia in the central nervous system. An increasing number of studies indicate that TREM2 has great potential to improve cognitive dysfunction related to Alzheimer's disease， vascular dementia， Parkinson's disease， postoperative cognitive impairment， obesity， etc. However， there is a lack of a systematic summary of the specific role of TREM2 in cognitive dysfunction. This paper reviews the progress in the latest research on the related mechanisms of TREM2 in cognitive dysfunction， in order to provide new strategies for the treatment of cognitive dysfunction.

Effect of an extracorporeal diaphragm pacemaker combined with airway clearance technology on pulmonary infection, diaphragmatic mobility and thickness in older adult patients with dementia / 中国基层医药

Objective:To investigate the efficacy of an extracorporeal diaphragm pacemaker (EDP) combined with airway clearance technology (ACT) in the treatment of pulmonary infection in older adult patients with dementia and its impact on diaphragmatic mobility and thickness.Methods:A total of 60 patients with dementia and pulmonary infections who received treatment at The Second Hospital of Jinhua from June 2022 to February 2023 were included in this prospective study. These patients were randomly divided into an observation group and a control group, with 30 patients in each group. The control group received ACT treatment, while the observation group received EDP treatment on the basis of ACT treatment. Two groups were treated for 4 successive weeks. Efficacy was compared between the two groups. Before and after treatment, sputum color score, sputum quality score, diaphragmatic mobility, and diaphragmatic thickness were compared between the two groups.Results:The overall response rate in the observation group was 93.33% (28/30), which was significantly higher than 73.33% (22/30) in the control group ( Z = 2.08, P = 0.038). After treatment, the sputum color score, sputum quality score, and sputum volume in the observation group were (0.46 ± 0.12) points, (0.34 ± 0.10) points, and (8.47 ± 1.23) mL, respectively, which were significantly lower than (0.89 ± 0.17) points, (0.76 ± 0.18) points, and (13.25 ± 2.87) mL, respectively, in the control group ( t = 11.32, 11.17, 8.38, all P < 0.001). After treatment, the diaphragmatic mobility and thickness in the observation group were (13.52 ± 0.51) mm and (0.52 ± 0.06) mm, respectively, which were significantly greater than (12.76 ± 0.41) mm and (0.44 ± 0.04) mm, respectively, in the control group ( t = -6.36, -6.08, both P < 0.001). Conclusion:The combined application of EDP and ACT shows a significant therapeutic effect on patients with dementia and pulmonary infection, effectively improving their pulmonary function, increasing the mobility and thickness of the diaphragm, and alleviating difficulties in breathing.

Effects of different duration of exercise preconditioning on cerebral blood flow and microglia activation related proteins in rats with vascular dementia / 中国康复医学杂志

Objective:To explore the effects of different duration of exercise preconditioning on changes in cerebral blood flow and microglia activation related proteins in rats with vascular dementia. Method:Sixty SPF SD male rats were used to prepare vascular dementia rat models by permanent ligation of bilateral common carotid arteries.They were randomly divided into the model group,sham-operated group,ex-ercise preconditioning 4-week model group,exercise preconditioning 4-week sham-operated group,exercise pre-conditioning 2-week model group and exercise preconditioning 2-week sham-operated group,with 10 rats in each group.The exercise preconditioning 4-week rats received 30 minutes of moderate intensity non-weight-bear-ing swimming training 5 times a week for 4 weeks before modeling,while the exercise preconditioning 2-week rats received the same training for 2 weeks.Morris water maze was used to detect the spatial learning and memory ability of rats,laser speckle imaging technique was used to observe the changes of cerebral blood flow and the opening of collateral circulation of rats at different time point before and after the model-ing,and Western Blotting was used to detect the expression of TLR4 and Iba 1 protein in hippocampus. Result:Compared with the sham-operated group and the exercise preconditioning 2-week sham-operated group,the average escape latency time of rats in the exercise preconditioning 4-week sham-operated group,the model group,the exercise preconditioning 4-week model group and the exercise preconditioning 2-week model group was significantly prolonged(P＜0.05).Compared with the exercise preconditioning 4-week sham-operated group,the average escape latency time of rats in the model group and the exercise preconditioning 4-week model group was significantly prolonged(P＜0.05).Compared with the model group and exercise preconditioning 4-week model group,the average escape latency time of rats in exercise preconditioning 2-week model group was significantly decreased(P＜0.05).The simple effect of repetitive measurement deviation analysis suggested that the average cerebral blood flow before modeling,2h after modeling,3d after modeling and 7d after model-ing was statistically significant between the groups(P＜0.05).The simple effect of time factor on average cere-bral blood flow of the model group,the exercise preconditioning 4-week model group and the exercise precon-ditioning 2-week model group was statistically significant(P＜0.01).The opening of collateral circulation of rats in each group was observed.Compared with the model group,less reduction in microvessel diameter was ob-served in the exercise preconditioning 2-week model group(P＜0.05).Compared with the sham-operated group,the exercise preconditioning 4-week sham-operated group and the exercise preconditioning 2-week sham-operat-ed group,Ibal and TLR4 protein expressions in the model group were significantly increased(P＜0.01).Com-pared with the model group,Ibal and TLR4 protein expressions in the exercise preconditioning 2-week model group were decreased(P＜0.05). Conclusion:Moderate intensity exercise preconditioning for 2 weeks can improve the learning and memory abili-ty of vascular dementia rats,but exercise preconditioning for 4 weeks has no obvious effect on the improve-ment of learning and memory ability.The mechanism may be related to the improvement of cerebral blood flow status and the inhibition of microglia activation.

Effects of olfactory three needle on apolipoprotein E and pathological substrates in the hippocampus of mice with Parkinson's disease dementia / 中国康复医学杂志

Objective:To explore the mechanism of olfactory three needle therapy on Parkinson's disease dementia(PDD)by observing its effects on expression of apolipoprotein E(ApoE)、glial fibrillary acidic protein(GFAP)and related core pathology substrates in the hippocampus of PDD model mice. Method:Male C57BL/6 mice were randomly divided into four groups:control group(Control),sham opera-tion group(Sham),model group(Model)and acupuncture electrotherapy group(AE),with 10 mice in each group.The PD model was established by injecting 6-OHDA into the medial forebrain tract(MFB)and PDD mice were selected.After successful modeling and selection,the AE group received"olfactory three needle"electro acupuncture treatment.After 14 days of intervention,Morris water maze test and shuttle box test were used to evaluate the learning and memory ability of mice in each group.Hematoxylin-eosin(HE)staining was used to observe the pathological changes of hippocampal CA1 region.Western blotting was used to detect the expression of α-syn,Aβ and ApoE proteins in hippocampal CA1 region.The co-location rate of ApoE and GFAP in hippocampal CA1 region was observed by double immunofluorescence markers. Result:Compared with Model group,the AE group exhibited a shortened escape latency in water maze(P＜0.01),increased platform crossing(P＜0.05),increased active escape times of shuttle box(P＜0.05),and reduced the average total time of electric stimulation(P＜0.01).In the Model group,the neurons in the hippocampal CA1 area were sparsely arranged and showed signs of degeneration and necrosis;and cell nuclei were small,hyperchromatic and had unclear structures,indicating the appearance of nuclear pyrosis.In contrast,the AE group showed significant improvements in neuronal pathology,with most cells regularly arranged,round and large nuclei,lightly stained and clearly shaped.Compared with the Model group,the expression levels of α-syn,Aβ,ApoE protein and the co-localization rate of ApoE and GFAP in hippocampal CA1 region in AE group were decreased(P＜0.01,P＜0.01,P＜0.01,P＜0.05). Conclusion:The"Olfactory three needle"acupuncture can improve the cognitive ability and restore the morpho-logical structure and function of neurons in PDD mice.The mechanism may be related to the inhibition of ApoE expression in astrocytes and the reduction of α-syn and Aβ deposition in hippocampal CA1 region.

Tectorigenin improves cognitive deficits in rats with vascular dementia by regulating TLR4/MyD88/NF-κB signaling pathway / 中国免疫学杂志

Objective:To analyze effects of tectorigenin on improving cognitive deficits in rats with vascular dementia(VD)by regulating Toll-like receptor 4(TLR4)/myeloid differentiation factor 88(MyD88)/nuclear factor-κB(NF-κB)signaling pathway.Methods:A total of 72 rats were randomly divided into sham operation group,model group,low,medium and high doses[25,50,100 mg/(kg·d)]tectorigenin groups and positive control group[piracetam 324 mg/(kg·d)],with 12 rats in each group.Except for sham operation group,VD models were replicated in other groups.After successful modeling,different doses tectorigenin groups and positive control group were administered intragastrically with different doses of tectorigenin and piracetam,while other groups were administered intragastrically with same volume of normal saline for 28 d.Spatial learning and memory ability were detected by Morris water maze.Neurotransmitter levels in hippocampus interstitial fluid were detected by high performance liquid chromatography-electro-chemical.Brain-derived neurotrophic factor(BDNF)and tyrosine kinase receptor b(TrkB)expressions in hippocampus were detected by RT-qPCR and Western blot.TLR4/MyD88/NF-κB pathway-related proteins in hippocampus were detected by Western blot.Results:Compared with sham operation group,escape latency was longer,while stay time in target area and times of crossing platform were lower in model group(P<0.05).Compared with model group,escape latency was shorter,while stay time in target area and times of crossing platform were higher in medium and high doses tectorigenin groups(P<0.05).NE,DA,5-HT and 5-HIAA levels in model group were lower than those in sham operation group(P<0.05),which were higher in medium and high doses tectorigenin groups than model group(P<0.05).Compared with sham operation group,BDNF and TrkB mRNA and proteins levels were lower,while TLR4,MyD88 and p-NF-κB p65/NF-κB p65 proteins levels were higher in model group(P<0.05).Compared with model group,BDNF and TrkB mRNA and proteins levels were higher,while TLR4,MyD88 and p-NF-κB p65/NF-κB p65 proteins levels were lower in medium and high doses tectorigenin groups(P<0.05).Conclusion:Tectorigenin can improve cognitive deficits in VD rats,which may be related to regulating TLR4/MyD88/NF-κB signaling pathway.

Apolipoprotein ApoE Combined with Clinical Related Indices to Predict and Verify a Model for Alzheimer's Disease / 中国卫生统计

Objective To construct a clinical prediction model for the risk of Alzheimer's disease based on ApoE,combined with risk factors and common clinical indicators.Methods There were 61 cases of Alzheimer's disease patients and 111 cases of fuzzy matching healthy physical examination from Nanjing Hospital of Chinese Medicine data platform from January 2019 to January 2021.Using LASSO regression screening of risk factors,constructing logistic regression forecasting model,10 fold cross verifies the degree of differentiation,validation the calibration of the bootstrap method.The clinical guidance of the prediction model was evaluated by the clinical decision curve,and finally,the clinical prediction model was visualized by nomogram.Results 12 variables were screened out and four risk factors were included,which are age,free triiodothyroxine(FT3),gender and ApoE.The AUC of ROC of the whole sample was 0.879,and the average AUC of ROC after 10 folded and 9 crossed training sets verification was 0.864.Bootstrap method and Hosmer-Lemeshow were used to test the calibration degree.Results χ2 =6.496,P=0.592>0.05.The threshold probability of clinical decision curve ranged from 1%to 88.6%.Conclusion Individualized evaluation of patients using clinical prediction models constructed by age,FT3,gender and ApoE can provide early warning of Alzheimer's disease,carry out early prevention intervention and slow down the development of the disease.

Visualization Analysis on Research Literature about Acupuncture Treatment of Vascular Dementia from 2003 to 2023 / 中国中医药信息杂志

Objective To analyze the status and development direction of acupuncture treatment for vascular dementia from 2003 to 2023;To provide reference for related research.Methods Relevant literature on acupuncture treatment for vascular dementia was retrieved from CNKI,Wanfang Data,and VIP from January 2003 to September 2023.NoteExpress 3.7.0 and CiteSpace 5.7.R5 software were used to analyze keywords,authors,research institutions,and visualize knowledge maps.Results A total of 934 articles were included in the analysis,showing a slow fluctuating upward trend in publication volume.The study involved 653 authors,with prolific contributors such as Lai Xinsheng,Liu Zhibin,and Niu Wenmin.It included 449 research institutions,with prominent contributors being the First Affiliated Hospital of Heilongjiang University of Chinese Medicine,Heilongjiang University of Chinese Medicine,and Guangzhou University of Chinese Medicine.Additionally,635 keywords were identified,forming 23 clusters.High-frequency keywords included"cognitive function","rats",and"hippocampus".Conclusion The protection and repair of nerves by acupuncture,the improvement of cognitive function,the comprehensive treatment mode,and the prevention of vascular dementia may be the research hotspots and trends in this field.

Construction of domain knowledge graph of dementia care / 中华护理杂志

Objective To construct a domain knowledge graph of dementia care,so as to provide the foundation and guarantee for the next intelligent application based on the knowledge graph.Methods A top-down approach was adopted to construct a domain knowledge graph of dementia care.Firstly,the ontology concept is constructed from the top level,namely the schema layer of knowledge graph.Then,instances are filled,and knowledge extraction is carried out from the existing data sources,and the extracted entities and relationships are filled into the pattern layer ontology database to complete the data layer construction of the knowledge graph.Finally,the"entity relationship entity"triplet data was input into the Neo4j graph database for storage.Results In this study,the personalized care plan set of 1 012 dementia cases was used as the corpus to construct a domain knowledge graph of dementia care.The knowledge graph takes people with dementia as the core,and unfolds,one by one,around basic characteristics,care problems,and care plans in a standardized"entity-relationship-entity"triplet format,forming a large knowledge network,which contains a total of 1 522 specific dementia care knowledge entities and 8 kinds of inter-entity relationships.Conclusion The domain knowledge graph of dementia care constructed in this study clearly and intuitively shows the global pedigree and logical path of knowledge,which provides an efficient and intelligent basic guarantee for the browsing,retrieval and application of dementia care knowledge,so as to realize personalized and intelligent management of people with dementia,break through the bottleneck of lack of professionals,improve the health outcomes of people with dementia,promote the implementation of inclusive pension services,and promote healthy aging.

Expression and clinical application of serum cystatin C and high-density lipoprotein cholesterol in AD and VD patients / 中华老年心脑血管病杂志

Objective To investigate the expression of cystatin C(Cys C)and high-density lipopro-tein cholesterol(HDL-C)in the serum of patients with Alzheimer's disease(AD)and vascular dementia(VD),and their clinical application.Methods A total of 40 AD patients(AD group)and 40 VD patients(VD group)admitted to Jinhua Second Hospital from January 2020 to January 2022 were enrolled,and another 40 healthy individuals who taking physical examination in the hospital during the same period were subjected as control group.According to Montreal Cognitive Assessment Scale(MoCA)score,the AD patients were divided into mild(22 cases)and moderate to severe(18 cases)AD groups,and the VD patients were into mild(MoCA score 18-26,24 cases)and moderate to severe(MoCA score＜17,16 cases)VD group.Serum levels of Cys C and HDL-C were detected in all the participants,and the diagnostic efficacy of serum Cys C and HDL-C level for AD and VD was analyzed with ROC curve analysis.Results The serum levels of TC,TG,LDL-C and Cys C were significantly higher,and that of HDL-C was obviously lower in the AD and VD groups than the control group(P＜0.05).The Cys C level in the moderate to severe AD group and the moderate to severe VD group was higher than that in the mild AD group and the mild VD group(P＜0.05).There was no significant difference in HDL-C level among moder-ate to severe AD group,moderate to severe VD group,mild AD group and mild VD group(P＞0.05).The AUC value for the combined Cvs C and HDL-C for diagnosis of AD and VD were 0.980(95％CI:0.943-1.000)and 0.951(95％CI:0.905-0.996),respectively.Conclusion Detec-ting serum Cys C and HDL-C levels is simple and convenient.There are significant differences in their serum levels in the patients with AD and VD when compared with healthy population,which may become reference indicators for screening AD and VD.

Research advances on mild cognitive impairment subtypes and their influencing factors / 中华老年医学杂志

Mild cognitive impairment(MCI)is a prodromal phase of dementia with heterogeneity in etiology, clinical presentation, disease progression, outcome, and prognosis.The number of studies on MCI subtypes is increasing each year.This article discussed the subtypes of MCI from the perspectives of phenotypic characteristics, etiology, progression, outcome, and data-driven approaches, and further summarizes the epidemiological characteristics, influencing factors, and risk of progression to dementia of each subtype.Despite the increasing number of studies on MCI subtyping, research remains limited on the correlation between MCI subtypes from different perspectives, indicating a need for further investigation in order to achieve more accurate and effective diagnosis and treatment of MCI and obtain evidence for dementia prevention.

Research progress on autonomic dysfunction in dementia with Lewy bodies / 中华全科医师杂志

Dementia with Lewy bodies (DLB) is the second most common type of neurodegenerative dementia. Autonomic dysfunction is a relatively common clinical manifestation in DLB patients, affecting various systems such as the cardiovascular, urinary, reproductive, and sweating systems. Autonomic symptoms can have profound impact on the patients′ quality of life and can lead to complications affecting their life expectancy. This review summarizes the pathology, symptoms, examination and treatment of autonomic dysfunction in DLB to provide reference for clinicians.

Synaptic vesicle protein 2A positron emission tomography images of semantic variant primary progressive aphasia patient with GRN mutation: a case report / 中华神经科杂志

Synaptic dysfunction plays an important role in the early stage of frontotemporal dementia (FTD), and there are differences in the pattern of synaptic damage in different genotypes. GRN gene mutations are rare in the Chinese population, and there are no reports of synaptic damage patterns in GRN mutations or semantic variant primary progressive aphasia (svPPA). The synaptic injury characteristics of a patient with svPPA harboring GRN gene mutations, which was characterized by decreased synaptic density in the left frontal, temporal, parietal lobe and contralateral cerebellum were reported in this article. The underlying mechanism of synaptic dysfunction involved in the disease process, and potential targets for future clinical interventions were indicated.