Long-term improvement of low frequency deep brain stimulation on the nucleus basalis of Meynert in patients with early-onset severe Alzheimer's disease / 中华神经医学杂志

Objective:To preliminarily explore the long-term improvement of low-frequency deep brain stimulation (DBS) on the nucleus basalis of Meynert (NBM) in cognitive disorders, neuropsychiatric symptoms and sleep disorders of patients with early-onset severe Alzheimer's disease (AD).Methods:A retrospective study was performed; 18 patients with early-onset severe AD admitted to Department of Neurosurgery, First Medical Center of PLA General Hospital from January 2016 to December 2022 were included. These patients were divided into NBM-DBS group and control group according to different treatments; 6 patients received low-frequency NBM-DBS on basis of conservative treatments; 12 patients accepted conservative treatments. Changes in Brief Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Neuropsychiatric Inventory (NPI), Hamilton Depression Rating Scale (HAMD), Becker-Lavanson Mania Scale (BRMS), Pittsburgh Sleep Quality Index (PSQI), and Zarit Caregiver Burden Interview (ZBI) were observed before treatment and 1 year after follow up.Results:MMSE and MoCA scores 1 year after follow up obviously reduced compared with those before treatment in both NBM-DBS and control patients; MMSE and MoCA scores in NBM-DBS patients showed no significant differences between 1 year after follow up and before treatment ( P>0.05), while significant differences were noted in the control group between 1 year after follow-up and before treatment ( P<0.05); and no significant differences in MMSE and MoCA scores were noted between the 2 groups 1 year after follow up ( P>0.05). NPI, HAMD, BRMS and ZBI scores in the NBM-DBS group 1 year after follow up were significantly different compared with those before treatment ( P<0.05); no significant differences were noted in NPI, HAMD and ZBI scores in the control group between 1 year after follow up and before treatment ( P>0.05), while significant difference was noted in BRMS scores ( P<0.05); significant differences in NPI, HAMD, BRMS and ZBI scores were noted between the 2 groups 1 year after follow up ( P<0.05). Conclusion:Low-frequency NBM-DBS is not only effective in improving cognitive disorders, but also effective in improving neuropsychiatric symptoms and sleep disorders, as well as reducing caregiver burden in patients with early-onset severe AD.

Serious Games to Improve Attention in Boys and Girls with Attention Deficit Hyperactivity Disorder (ADHD): A Pilot Study

Background: The objective of this study was to test a treatment program in Serious Games (SG) format to improve attention in children from Catalonia, Spain, with Attention Deficit Hyperactivity Disorder (ADHD). The activities adapted to the SG format consisted of (1) stimulus selection, (2) mark equal drawings, (3) eight differences, (4) hidden figures, (5) compare texts, (6) compare measures and shapes, (7) put model keys, (8) labyrinths and (9) memorization of drawings. Method: A pretest-posttest design was used with a cohort of 30 children between 8 and 10 years old diagnosed with ADHD, with 20% girls (n = 6) and 80% boys (n = 24) with a mean age of 9.4 years (SD = 0.63; range of 8 to 10 years). Four schools and a clinical center from Catalonia, Spain participated in the sample composition. Half of the sample participated in an attention improvement program for nine sessions of 30-45 minutes each in Serious Games format. They were presented with a series of game challenges with various virtual scenarios through a monitor. The other half did the same attention improvement program in pencil and paper format. Results: The children in the Serious Games group progressed and improved more during treatment, as shown by the average number of errors of commission (p =.02) than those in the pencil and paper group. Both groups also improved in the total score and concentration scale of the D2 test (p < .001). Conclusions: Attentional training through programs in Serious Games format seems to have a more significant effect on commission errors than attentional training in pencil and paper format.

Antecedentes: El objetivo del presente estudio ha sido poner a prueba un programa de tratamiento en formato Serious Games (SG) para mejorar la atención en niños de Cataluña, España, con Trastorno por Déficit de Atención/Hiperactividad (TDAH). Las actividades adaptadas al formato SG consistieron en (1) selección de estímulos, (2) marcar dibujos iguales, (3) ocho diferencias, (4) figuras ocultas, (5) comparar textos, (6) comparar medidas y formas, (7) poner llaves modelo, (8) laberintos y (9) memorización de dibujos. Método: Se utilizó un diseño pretest-postest con una cohorte de 30 niños entre 8 y 10 años con diagnóstico de TDAH, con un 20% de niñas (n = 6) y un 80% de niños (n = 24) con una edad media de 9.4 años (DE = 0.63; rango de 8 a 10 años). La mitad de la muestra participó en un programa de mejora de la atención durante 9 sesiones de entre 30-45 minutos cada una en formato de Serious Games. Se les presentó una serie de desafios de juego con varios escenarios virtuales a través de un monitor. La otra mitad de la muestra hizo el mismo programa de mejora de la atención, pero en formato lápiz y papel. Resultados: Los niños del grupo de Serious Games progresaron y mejoraron más durante el tratamiento, como lo demuestra el promedio de errores de comisión (p = .02), en comparación con los niños del grupo de lápiz y papel. Ambos grupos también mejoraron en la puntuación total y en la escala de concentración de la prueba D2 (ambos p < .001). Conclusiones: El entrenamiento atencional a través de programas en formato Serious Games parece tener un mayor efecto que el entrenamiento atencional en formato lápiz y papel sobre los errores de comisión.

Psychological disorders in perimenopausal women / 中华老年医学杂志

Perimenopausal period includes the whole process from the beginning of the decline of gonadal function to the complete loss, which lasts for 1 to 10 years.It is a fragile'window period'with the high incidence of mental illness for women.During this period, the mental health status of women is closely related to their mental health status at older age.Emotional disorders, sleep disorders, and cognitive impairment are common in perimenopausal and postmenopausal women, but currently receive insufficient attention.Therefore, the present review discusses the current state of research on the prevalence, pathogenesis, intervention, and management of the above-mentioned disorders, and thus to provide a basis for prevention and intervention programs among perimenopausal women.

Effect of astaxanthin on blood brain barrier injury and cognitive impairment in db/db mice and its mechanism / 中国药理学通报

Aim To investigate the effect of astaxanthin (ASTA) on the blood brain barrier (BBB) injury and cognitive disorders in mice induced by hyperglycemia and the possible mechanism. Methods db/db mice aged eight weeks were administered ASTA (5, 10, 20 mg • kg

Prognosis of childhood adrenoleukodystrophy with cognitive disorder after haploidentical allogenic hemato-poietic stem cell transplantation / 中华实用儿科临床杂志

Objective:To investigate the prognosis of childhood adrenoleukodystrophy (ALD) with cognitive disorder after haploidentical allogenic hematopoietic stem cell transplantation (haplo-HSCT), and to identify risk factors affecting the prognosis.Methods:It was a single-center retrospective study involving 31 ALD children receiving haplo-HSCT in Peking University People′s Hospital from January 2014 to October 2022.Survival analysis was performed by Kaplan-Meier method. Cox regression analysis was performed to identify risk factors for the prognosis of childhood ALD following haplo-HSCT. Results:Among the 31 children with ALD, 1 case died of cardiogenic shock during the transplantation, and the remaining had a successful haplo-HSCT.Ten children with ALD had cognitive disorder before haplo-HSCT, including 3 cases with the minimal LOES score ≥10 points and 8 cases with the Neurologic Function Score (NFS)>0 point before haplo-HSCT.Six children had major functional disability (MFD) and 2 cases died due to progression of ALD after haplo-HSCT.Twenty children did not have cognitive disorder before haplo-HSCT, of whom 3 cases had the LOES score≥10 points and 6 cases had NFS>0 before haplo-HSCT.Four children had MFD and 2 cases died due to progression of ALD after haplo-HSCT.For ALD patients without cognitive disorder after haplo-HSCT, the 3-year and 5-year survival rate were 100.0% and 72.9%, respectively, and the 5-year MFD-free survival was 61.6%.For ALD patients with cognitive disorder after haplo-HSCT, the 3-year survival rate was 83.3%.Compared with ALD patients with the LOES score<10 points before haplo-HSCT, those with the LOES score≥10 points had 9.243 times the risk of developing MFD after haplo-HSCT ( P=0.024, 95% CI: 1.332-64.127). Compared with ALD patients without cognitive disorder before haplo-HSCT, ALD patients with cognitive disorder had 9.749 times the risk of developing MFD after haplo-HSCT ( P=0.023, 95% CI: 1.358-66.148). Conclusions:Cognitive disorder and LOES score≥10 points before haplo-HSCT are risk factors for developing MFD in children with ALD following haplo-HSCT.

Risk factors for cognitive dysfunction in patients with traumatic brain injury / 中国康复理论与实践

@#Objective To investigate the risk factors of cognitive dysfunction in patients with traumatic brain injury. Methods From March to September, 2021, 556 hospitalized patients with traumatic brain injury were selected from a multicenter study. A 1∶1 sex-matched case-control study design was used. After assessment by Montreal Cognitive Assessment (MoCA), those with cognitive impairment were as case group and those without cognitive impairment were as control group. They were collected general data and assessed with Social Support Rating Scale (SSRS) and Hospital Anxiety and Depression Scale (HADS). Results Logistic regression analysis showed that college education or above (OR = 0.040) and high level of social support (OR = 0.118) were protective factors for cognitive impairment (P < 0.05). Aged 60 to 88 years (OR = 9.996), severe brain injury (OR = 7.345), headache after injury (OR = 2.159), frequent waking at night or multiple dreams ≥ three times per week (OR = 3.705), severe upper limb dysfunction caused by brain injury (OR = 6.072), depression (OR = 5.202) were risk factors for cognitive impairment (P < 0.05). Conclusion The related factors for cognitive impairment in patients with traumatic brain injury include general factors, disease factors, sleep, psychological and social support and other factors. It is suggested that in addition to the treatment of disease, it is necessary to improve sleep, psychology and social support, to reduce the incidence of cognitive impairment and promote the recovery of disease.

Progress on associations between intrauterine cigarette smoke exposure and cognitive and behavioral development / 国际儿科学杂志

Intrauterine cigarette smoke exposure(ICSE)refers to a condition under which pregnant women actively inhale and/or passively inhale cigarettes and smogs mostly consisting of nicotine, tar and carbon monoxide during the first, second and third trimesters of pregnancies.As an adverse environmental factor in early life, ICSE is associated with increased risks of various diseases at childhood and adulthood.ICSE is closely related with children′s cognitive and behavioral developmental disorders.It has been reported that ICSE led to elevated risks of cognitive impairments including disorders in fine motor skills, language and vocabulary, reading comprehension, matrix reasoning, working memory, learning skills, orientation and other capabilities.Additionally, it is associated with increased risks of attention deficit hyperactivity disorder and sleep disorder, but the association with autism spectrum disorder is still controversial.The review focuses on the effects of ICSE on cognitive and behavioral development, and summarizes the underlying mechanisms, providing more clinical ideas for etiological studies of cognitive and behavioral developmental disorders in children.

Targeting redox-altered plasticity to reactivate synaptic function: A novel therapeutic strategy for cognitive disorder

Redox-altered plasticity refers to redox-dependent reversible changes in synaptic plasticity

Complement C3 Aggravates Post-epileptic Neuronal Injury Via Activation of TRPV1 / 神经科学通报·英文版

Epilepsy is a brain condition characterized by the recurrence of unprovoked seizures. Recent studies have shown that complement component 3 (C3) aggravate the neuronal injury in epilepsy. And our previous studies revealed that TRPV1 (transient receptor potential vanilloid type 1) is involved in epilepsy. Whether complement C3 regulation of neuronal injury is related to the activation of TRPV1 during epilepsy is not fully understood. We found that in a mouse model of status epilepticus (SE), complement C3 derived from astrocytes was increased and aggravated neuronal injury, and that TRPV1-knockout rescued neurons from the injury induced by complement C3. Circular RNAs are abundant in the brain, and the reduction of circRad52 caused by complement C3 promoted the expression of TRPV1 and exacerbated neuronal injury. Mechanistically, disorders of neuron–glia interaction mediated by the C3–TRPV1 signaling pathway may be important for the induction of neuronal injury. This study provides support for the hypothesis that the C3–TRPV1 pathway is involved in the prevention and treatment of neuronal injury and cognitive disorders.

Complement C3 Aggravates Post-epileptic Neuronal Injury Via Activation of TRPV1 / 神经科学通报·英文版

Epilepsy is a brain condition characterized by the recurrence of unprovoked seizures. Recent studies have shown that complement component 3 (C3) aggravate the neuronal injury in epilepsy. And our previous studies revealed that TRPV1 (transient receptor potential vanilloid type 1) is involved in epilepsy. Whether complement C3 regulation of neuronal injury is related to the activation of TRPV1 during epilepsy is not fully understood. We found that in a mouse model of status epilepticus (SE), complement C3 derived from astrocytes was increased and aggravated neuronal injury, and that TRPV1-knockout rescued neurons from the injury induced by complement C3. Circular RNAs are abundant in the brain, and the reduction of circRad52 caused by complement C3 promoted the expression of TRPV1 and exacerbated neuronal injury. Mechanistically, disorders of neuron-glia interaction mediated by the C3-TRPV1 signaling pathway may be important for the induction of neuronal injury. This study provides support for the hypothesis that the C3-TRPV1 pathway is involved in the prevention and treatment of neuronal injury and cognitive disorders.

Perfil clínico neuropsicológico del deterioro cognitivo subtipo posible Alzheimer / Clinical and Neuropsychological Profile of Possible Alzheimer subtype neurocognitive disorder

Introducción: La enfermedad de Alzheimer se presenta con diferentes fenotipos neuropsicológicos y se considera que el deterioro de la memoria es su afectación más sobresaliente; no obstante, estudios recientes sugieren que los trastornos en las funciones ejecutivas pueden constituir marcadores muy tempranos de la enfermedad. Objetivos: Caracterizar los perfiles clínicos y neuropsicológicos que constituyen marcadores fenotípicos de los trastornos neurocognitivos subtipo posible Alzheimer. Métodos: Se realizó un estudio descriptivo y transversal de 39 enfermos con edades comprendidas entre 57-85 años, clasificados según los criterios del DSM-5, con deterioro cognitivo leve y mayor, catalogados desde el punto de vista etiológico en el subtipo posible Alzheimer. Se evaluaron múltiples dominios cognitivos (atención compleja, memoria y aprendizaje, funciones ejecutivas, lenguaje, funciones motoras y perceptuales) y se hizo una evaluación detallada de las funciones ejecutivas mediante un grupo de test neuropsicológicos específicos. Resultados: El análisis estadístico demostró que entre los dos grupos de estudio con deterioro cognitivo existen diferencias significativas en cuanto al nivel de funcionamiento cognitivo en todos los dominios explorados, excepto en la percepción y funciones motoras. Así mismo, los resultados demostraron que el nivel de rendimiento para cada función evaluada dentro del dominio de las funciones ejecutivas es significativamente diferente entre ambos grupos con deterioro cognitivo, excepto para la orientación espacial. Conclusiones: El perfil neuropsicológico del deterioro cognitivo subtipo posible Alzheimer se caracterizó por una afectación en múltiples dominios, con predominio de la disfunción ejecutiva focalizada en las áreas de la flexibilidad mental e inhibición de automatismos.

Introduction: Alzheimer disease is presented with different neuropsychological phenotypes and it is considered that the memory disorder is its most important one; however, recent studies suggest that the dysfunctions in the executive functions can constitute very early markers of the disease. Objectives: To characterize the clinical and neuropsychological profiles that constitutes phenotypical markers of the neurocognitive disorders possible Alzheimer subtype. Methods: A descriptive and cross-sectional study of 39 sick persons with ages between 57-85 years, classified according to the DSM-5 criteria, with cognitive mild and major disorder, classified from the etiological point of view in the possible Alzheimer subtype was carried out. Multiple cognitive domains were evaluated (complex attention, memory and learning, executive functions, language, motor and perceptual functions) and a detailed evaluation of the executive functions was made by means of a group of specific neuropsychological tests. Results: The statistical analysis demonstrated that comparing the two study groups with cognitive disorder, significant differences exist as for the level of cognitive performance in all the explored domains, except in the perception and motor functions. Likewise, the results demonstrated that the yielding level for each function evaluated within the domain of the executive functions is significantly different between both groups with cognitive disorder, except for the space orientation. Conclusions: The neuropsychological profile of the cognitive disorder Alzheimer possible subtype was characterized by a disorder in multiple domains, with predominance of the focused executive dysfunction in the areas of the mental flexibility and inhibition of automatisms.

Relationship between Toxoplasma gondii infection and dysfunctional diseases of the hippocampus / 西安交通大学学报(医学版)

The hippocampus, a crucial structure for neuronal plastic response, participates in various aspects of higher function of the brain. Toxoplasma gondii is prevalent in humans and seropositivity of toxoplasma is estimated to be more than 30% in the world. This review summarizes the recent findings on the role of toxoplasma infection in hippocampus-dysfunctional diseases with an emphasis on the underlying mechanisms. Those hippocampus-dysfunctional diseases include epilepsy, schizophrenia, cognitive disorder, and depression. Also, this review discusses the potential problems or limitations of previous studies on this subject, and at the same time raises novel strategies for treating hippocampus-dysfunctional diseases, especially cryptogenic or treatment-resistant diseases.

Rendimiento Diagnóstico De Minimental Frente Al Dsm-5 En Trastorno Cognitivo: Experiencia De Una Cohorte En Colombia / Diagnostic Performance Of Minimental Against Dsm-5 In Cognitive Disorder. Experience Of A Cohort In Colombia

Resumen Antecedentes: Las herramientas de cribado cognitivo son útiles en el escenario clínico e investigación. MiniMental (MMSE) es uno de los instrumentos más utilizados en Colombia. El objetivo de este trabajo es determinar el rendimiento operativo del MMSE, frente a los nuevos criterios del DSM-5 para el diagnóstico de trastorno cognitivo. Materiales y métodos: Estudio de prueba diagnóstica ensamblado en una cohorte colombiana, se evaluó una muestra consecutiva de 200 participantes mayores de 50 años (66.5,+/-8.86) que representaron todo el espectro de la condición de interés, la prueba índice (MMSE) fue comparada con el estándar clínico de referencia (consenso diagnóstico y clasificación por criterios DSM-5). Resultados: Para trastorno cognitivo leve (TCL), el rendimiento diagnóstico de MMSE fue: Sensibilidad 45.3%(IC95% 33.7 a 57.4), especificidad 96.9% (IC95% 91.4 a 99.0) y exactitud del 76.9% (IC 95% 69.5 a 82.4) a un punto de corte de 26 y para trastorno cognitivo mayor (TCM) fue: Sensibilidad 76.32% (IC 95% 60.8-87.0) y especificidad 97.53% (IC 95% 93.8-99.0) en el punto de corte de 24. Conclusiones: MMSE continúa siendo una alternativa válida para diagnóstico de TCM, sin embargo, tiene limitada validez para la detección de TCL, por lo que nuevas herramientas con objetivo de cribado de TCL deben ser consideradas.

Abstract Background: Cognitive screening tools are useful in the clinical and research setting. MiniMental (MMSE) is one of the most used instruments in Colombia, the objective of this work is to determine its performance against the new criteria for the diagnosis of cognitive disorder (DSM-5). Materials and methods: Diagnostic test study, assembled in a Colombian cohort, we evaluated a consecutive sample of 200 participants older than 50 years (66.5,+/-8.86) that represented the whole spectrum of the condition of interest, the index test (MMSE) was compared with the clinical reference standard (consensus diagnosis and classification by criteria DSM-5). Results: For mild cognitive impairment (MCI), the diagnostic performance of MMSE was: Sensitivity 45.3% (95% CI 33.7 to 57.4), specificity 96.9% (95% CI 91.4 to 99.0) and 76.9% accuracy (95% CI 69.5 to 82.4) at a cut-off point of 26 and, for major cognitive disorder (MCD) was: Sensitivity 76.32% (95% CI 60.8-87.0) and specificity 97.53% (95% CI 93.8-99.0) at the cut-off point of 24. Conclusions: MMSE is a valid alternative for the diagnosis of MCD, however it has limited validity for the detection of MCI, so new tools for the purpose of screening of MCI should be considered.

Analysis on the Effect of General Anesthesia Combined with Epidural Block on Post-operative Cognitive Disorder for Patients with Gastric Cancer Undergoing Laparoscopic Radical Operation / 医学研究杂志

Objective To explore the effect of general anesthesia combined with epidural block for patients with gastric cancer undergoing laparoscopic radical operation.Methods Totally 62 patients with gastric cancer who received laparoscopic radical operation were randomly and equally divided into combined group(n =31) and control group (n =31).Combined group and control group was given pure general anesthesia and general anesthesia combined with epidural block,respectively.The perioperative related indicators,hemodynamics and occurrence of POCD in both groups were compared.Results The dosage of propofol in combined group was significantly lower than that in control group (P ＜ 0.05).From T2 moment,the HR was significantly increased,and MAP was reduced in control group compared with T0 moment (P ＜ 0.05).The level of MAP in combined group was significantly higher than that in control group at T2-T4 moment(P ＜ 0.05).At 1 day after operation,MMSE score in control group was significantly reduced compared with before operation,and lower than combined group (P ＜ 0.05).The incidence of POCD in combined group was significantly lower than that in control group (P ＜ 0.05).Conclusion General anesthesia combined with epidural block for patients with gastric cancer undergoing laparoscopic radical operation can reduce the dosage of anesthetic drug,maintain hemodynamic stability,and improve postoperative cognitive ability.

Effect of Xingnao Kaiqiao acupuncture on clinical efficacy of patients with mild cognitive impairment after stroke and its mechanism / 中国中西医结合急救杂志

Objective To observe the effect of Xingnao Kaiqiao acupuncture on the clinical efficacy of patients with mild cognitive impairment (MCI) after stroke and to explore its mechanism. Methods A prospective randomized controlled clinical trial method was conducted, 128 patients with MCI after stroke admitted to Department of Acupuncture and Moxibustion of the First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine from September 2015 to May 2017 were enrolled, and they were divided into a control group and an observation group according to the random number table method, 64 cases in each group. The control group took 40 mg of nimodipine, 3 times a day; on the basis of the treatment in control group, the observation group was additionally given acupuncture therapy for arousing the brain and opening the orifices or resuscitation as the interference, the main acupoints applied were renzhong, neiguan (bilateral) and sanyinjiao (bilateral), the scalp points used were mainly baihui joining qianding (GV-21WHO), xinhui (GV-22WHO) joining qianting and benshen (GB-13WHO, bilateral), once a day, 5 times a week; the therapeutic course was 10 weeks in both groups. The differences in scores of Montreal cognitive assessment scale (MoCA), mini-mental state examination (MMSE), and in the levels of serum amyloid A (SAA) andβ-amyloid (Aβ) between the two groups before and 6 and 10 weeks after treatment were compared. Results With the prolongation of therapeutic time, the MoCA and MMSE scores of the two groups were increased significantly after treatment compared with those before treatment, the levels of SAA and Aβ were obviously lower than those before treatment, and the degrees of changes of the above indexes in the observation group were more marked than those in the control group, after treatment for 10 weeks, there were statistical significant differences in MoCA and MMSE scores between the observation and control groups (MoCA score: 25.32±2.54 vs. 22.67±3.17, MMSE score: 28.38±2.74 vs. 24.36±3.27), while after 6 weeks of treatment, the statistical significant differences in SAA and Aβlevels appeared between the two groups [SAA (μg/L): 74.52±25.64 vs. 103.36±27.53, Aβ (ng/L): 95.32±25.64 vs. 127.27±29.73, both P ＜ 0.05], and the situation persisted to 10 weeks after treatment [SAA (μg/L): 57.36±18.24 vs. 84.37±25.56, Aβ (ng/L): 55.47±21.36 vs. 92.74±23.57, both P ＜ 0.05]. Conclusion Resuscitation acupuncture possibly can inhibit the expression protein levels of serum SAA and Aβto improve the cognitive function of patients with MCI after stroke.

Working Memory Span in Normal Control, Mild Cognitive Impairment and Alzheimer's Disease

OBJECTIVE: The purposes of this study were to compare the working memory span between mild cognitive impairment (MCI) and Alzheimer's disease (AD) in the Korean elderly population and to evaluate the effectiveness of the working memory span tests. METHODS: 32 normal controls (NC), 26 patients with MCI and 28 AD patients at a mild stage were participated in this study. We used newly devised working memory span tests (Word span test and Dot matrix) according to the components of working memory ;central executive, phonological loop, and visuospatial sketchpad. And the results were compared with the Korean version of the Consortium to Establish a Registry for Alzheimer's Disease Assessment Packet (CERAD-K). To evaluate the effectiveness of the working memory tests and CERAD-K to screen MCI and AD, receiver operating characteristic curves were plotted. RESULTS: All subsets of the two working memory span tests showed significant decline in verbal and visuospatial working memory in AD. But there was no significant difference between NC and MCI. Compared to CERAD-K, the two working memory tests showed good effectiveness to discriminate AD. CONCLUSION: This study showed that working memory span tests could be effective diagnosing tools for detecting AD. But for the MCI, the working memory impairment was not prominent than episodic memory impairment. This is supposed to result from the various kinds of working memory components, especially the episodic buffer.

Clinical observation of long-time needle retaining at Baihui (GV 20) on post-stroke cognitive disorder of deficiency and blood stasis / 中国针灸

OBJECTIVE@#To observe the clinical efficacy of long-time needle retaining at Baihui (GV 20) on post-stroke cognitive disorder of deficiency and blood stasis.@*METHODS@#A total of 70 patients (3 cases dropping) with post-stroke cognitive disorder of deficiency and blood stasis were randomized into an observation group (34 cases) and a control group (33 cases). Neurological routine treatment and western medicine rehabilitation therapy were given in the control group as the basic treatment, on the basis of the treatment as the control group, long-time needle retaining at Baihui (GV 20) was applied in the observation group. The treatment was given once every other day, 3 times a week for a total of 4 weeks. The National Institute of Health stroke scale (NIHSS), mini-mental state examination (MMSE), Montreal cognitive assessment (MoCA) and deficiency blood stasis syndrome scale score were observed before and after treatment, and the clinical efficacy was compared between the two groups.@*RESULTS@#After 4 weeks of treatment, the NIHSS scores of the two groups were lower than those before treatment (both 0.05). The total effective rate was 94.1% (32/34) in the observation group, which was higher than 75.8% (25/33) in the control group (<0.05).@*CONCLUSION@#Long-time needle retaining at Baihui (GV 20) is safe and effective in treating with post-stroke cognitive disorder of deficiency and blood stasis.

The relationship between inositol phosphatase-1 and cognitive impairment induced by hippocampal neuritis in intrauterine infected mice / 中华实用儿科临床杂志

Objective To investigate the relationship between cognitive impairment and SH2 domain-containing inositol phosphatase-1 (SHIP-1) induced by hippocampal neuritis in intrauterine infected mice.Methods Thirty C57BL/6 female mice and 15 male mice were caged in a ratio of 2 ∶ 1.After that,the pregnant mice were divided into 2 groups.A mice model of intrauterine infection was established that intrauterine infection group (lipopolysaccharides,LPS group) induced by LPS at the concentration of 350 μg/kg and control group treated with same volume of saline (9 g/L).At 3 days postpartum,15 mice in each group were killed for hippocampus,and the protein levels of SHIP-1,nuclear factor-κB(NF-κB) p65 and phosphorus NF-κB(NF-κBp) in the hippocampus of the newborn mice were detected by Western blott,while the levels of interleukin 1β (IL-1β) and tumor necrosis factor (TNF-α)were detected by using enzyme linked immunosoobent assay.When the remaining mice were 8 weeks old(10 in each group),Morris water maze experiments were performed respectively,which the mice were tested for evaluating learning and memory function by positioning navigation and space exploration experiments.Results The expression of SHIP-1 was significantly increased in control group (0.677 ± 0.074) compared with LPS group (0.317 ± 0.095,t =2.984,P =0.041),while the levels of NF-κB p65,and NF-κBp,were significantly lower in control group (0.630 ± 0.109,0.352 ± 0.084) than LPS group(0.630 ± 0.109,0.352 ± 0.084) (t =3.516,5.161,P =0.025,0.007).Moreover,LPS significantly enhanced the expression of IL-1β and TNF-α [(5.875 ± 0.349) pg/mg,(14.256 ± 0.784)pg/mg] compared with control group[(1.621 ± 0.151) pg/mg,(3.984 ± 0.255) pg/mg],and the differences were significant(t =11.190,12.460,P=0.000,0.000).By the average Escape Latency tests for6 days,LPS group [at 1-6 days (58.286±1.418) s,(56.036 ±2.252) s,(55.071 ±1.856) s,(50.071 ±3.251) s,(52.893 ±2.372) s,(46.929 ±3.761) s] markedly impaired the learning capacity compared with the control group[(53.679 ±2.413) s,(47.571 ±3.529) s,(54.071 ±2.777) s,(47.250 ±2.864) s,(45.107 ±3.447) s,(42.393 ±3.463) s],and the difference was significant (F =4.466,P =0.001).Concurrently,in probe trains LPS group increased the time of in zone southeast latency to first [(44.080 ± 6.313) s] compared with the control group [(25.900 ± 6.033) s],while shortened the period of in zone platform duration and in zone SE duration [(0.000 ± 0.040) s,(4.000 ± 1.693) s],decreased the times of in zone SE frequency and in zone platform frequency[(0.100 ±0.100) times,(1.000 ±0.394)times] compared with the control group [(0.400 ± 0.202) s,(14.360 ± 5.000) s,(0.600 ± 0.267) times,(3.400 ±0.763) times] (t=2.082,1.746,1.962,2.794,1.756,P=0.026,0.049,0.033,0.006,0.048).Conclusion The expression of SHIP-1 in hippocampus of newborn mice with intrauterine infection is decreased,and the inhibitory effect of SHIP-1 on the expression of downstream pro-inflammatory cytokines NF-κB,inflammatory cytokines IL-1β and TNF-α is decreased,along with cognitive impairments.

Screening Ability of Subjective Memory Complaints, Informant-Reports for Cognitive Decline, and Their Combination in Memory Clinic Setting

OBJECTIVE: This study aimed to compare the accuracy of subjective memory complaints, informant-reports for cognitive declines, and their combination for screening cognitive disorders in memory clinic setting. METHODS: One-hundred thirtytwo cognitively normal (CN), 136 mild cognitive impairment (MCI), and 546 dementia who visited the memory clinic in the Seoul National University Hospital underwent standardized clinical evaluation and comprehensive neuropsychological assessment. The Subjective Memory Complaints Questionnaire (SMCQ) and the Seoul Informant Report Questionnaire for Dementia (SIRQD) were used to assess subjective memory complaints and informant-reports for cognitive declines, respectively. RESULTS: Both SMCQ and SIRQD showed significant screening ability for MCI, dementia, and overall cognitive disorder (CDall: MCI plus dementia) (screening accuracy: 60.1–94.6%). The combination of SMCQ and SIRQD (SMCQ+SIRQD) was found to have significantly better screening accuracy compared to SMCQ alone for any cognitive disorders. SMCQ+SIRQD also significantly improved screening accuracy of SIRQD alone for MCI and CDall, but not for dementia. CONCLUSION: Our findings suggest that the combined information of both subjective memory complaints and informant-reports for cognitive declines can improve MCI screening by each individual information, while such combination appears not better than informant-reports in regard of dementia screening.

Study on the effect of Tianqi Jiangtang capsules combined with metformin on blood viscosity, cognitive disorder in elderly patients with type 2 diabetes mellitus complicated with cerebral microvascular lesions / 中国生化药物杂志

Objective To investigate the effect of Tianqi Jiangtang capsules combined with metformin on blood viscosity, cognitive disorder in elderly patients with type 2 diabetes mellitus complicated with cerebral microvascular lesions.Methods 76 patients with type 2 diabetes mellitus complicated with cerebral microvascular lesions were divided into the observation group and the control group according to odd and even numbers, 38 cases in each group.The observation group were given Tianqi Jiangtang capsules combined with metformin while the control group were received metformin alone.The clinical curative effect, adverse reactions were compared between the two groups.The total score of TCM symptoms, blood glucose, blood lipid, high-sensitivity C reactive protein(hs-CRP), hemorheology and Mini Mental State Examination(MMSE)scores were determined before and after treatment.Results The total effective rate in the observation group(89.47%)was significantly higher than that in the control group(71.05%)(P< 0.05);After treatment, the total score of TCM symptoms, FPG, 2 h PG, hs-CRP, TC, TG, LDL-C, whole blood viscosity at high shear, whole blood viscosity at low shear, plasma viscosity and hematocrit were significantly lower than those before treatment, while MMSE scores were significantly higher(P< 0.05), and the above indexes in the observation group after treatment were significantly better than those in the control group(P< 0.05).There were no significant adverse reactions in the 2 groups.Conclusion Tianqi Jiangtang Capsules combined with metformin is safe and effective in the treatment of elderly patients with type 2 diabetes mellitus complicated with cerebral microvascular lesions.It can significantly improve lipid metabolism and hemorheology, reduce blood viscosity, and alleviate cognitive disorder.