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1.
medRxiv ; 2024 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-38826255

RESUMEN

Background: Approximately 40% of people aged 65 or older experience memory loss, particularly in episodic memory. Identifying the genetic basis of episodic memory decline is crucial for uncovering its underlying causes. Methods: We investigated common and rare genetic variants associated with episodic memory decline in 742 (632 for rare variants) Ashkenazi Jewish individuals (mean age 75) from the LonGenity study. All-atom MD simulations were performed to uncover mechanistic insights underlying rare variants associated with episodic memory decline. Results: In addition to the common polygenic risk of Alzheimer's Disease (AD), we identified and replicated rare variant association in ITSN1 and CRHR2 . Structural analyses revealed distinct memory pathologies mediated by interfacial rare coding variants such as impaired receptor activation of corticotropin releasing hormone and dysregulated L-serine synthesis. Discussion: Our study uncovers novel risk loci for episodic memory decline. The identified underlying mechanisms point toward heterogeneous memory pathologies mediated by rare coding variants.

2.
Neurobiol Aging ; 141: 102-112, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38850591

RESUMEN

The hypothalamus regulates homeostasis across the lifespan and is emerging as a regulator of aging. In murine models, aging-related changes in the hypothalamus, including microinflammation and gliosis, promote accelerated neurocognitive decline. We investigated relationships between hypothalamic microstructure and features of neurocognitive aging, including cortical thickness and cognition, in a cohort of community-dwelling older adults (age range 65-97 years, n=124). Hypothalamic microstructure was evaluated with two magnetic resonance imaging diffusion metrics: mean diffusivity (MD) and fractional anisotropy (FA), using a novel image processing pipeline. Hypothalamic MD was cross-sectionally positively associated with age and it was negatively associated with cortical thickness. Hypothalamic FA, independent of cortical thickness, was cross-sectionally positively associated with neurocognitive scores. An exploratory analysis of longitudinal neurocognitive performance suggested that lower hypothalamic FA may predict cognitive decline. No associations between hypothalamic MD, age, and cortical thickness were identified in a younger control cohort (age range 18-63 years, n=99). To our knowledge, this is the first study to demonstrate that hypothalamic microstructure is associated with features of neurocognitive aging in humans.


Asunto(s)
Envejecimiento , Cognición , Envejecimiento Cognitivo , Hipotálamo , Humanos , Anciano , Masculino , Femenino , Anciano de 80 o más Años , Hipotálamo/diagnóstico por imagen , Hipotálamo/patología , Persona de Mediana Edad , Adulto , Envejecimiento Cognitivo/fisiología , Envejecimiento/patología , Envejecimiento/psicología , Adulto Joven , Imagen por Resonancia Magnética , Adolescente , Estudios de Cohortes , Estudios Transversales , Corteza Cerebral/diagnóstico por imagen , Corteza Cerebral/patología , Anisotropía
3.
Neurobiol Aging ; 141: 46-54, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38820770

RESUMEN

Cognition and gait share brain substrates in aging and dementia. Cognitive reserve (CR) allows individuals to cope with brain pathology and delay cognitive impairment and dementia. Yet, evidence for that CR is associated with age-related cognitive decline is mixed, and evidence for that CR is associated with age-related gait decline is limited. In 1,079 older (M Age = 75.4 years; 56.0% women) LonGenity study participants without dementia at baseline and up to 12 years of annual follow-up (M follow-up = 3.9 years, SD = 2.5 years), high CR inferred from cognitive (education years), physical (number of blocks walked per day; weekly physical activity days), and social (volunteering/working; living with someone) proxies were associated with slower rates of age-related decline in global cognition - not gait speed decline. Thus, cognitive, physical, and social CR proxies are associated with cognitive decline in older adults without dementia. The multifactorial etiology and earlier decline in gait than cognition may render it less modifiable by CR proxies later in life.


Asunto(s)
Envejecimiento , Disfunción Cognitiva , Reserva Cognitiva , Velocidad al Caminar , Humanos , Reserva Cognitiva/fisiología , Femenino , Anciano , Masculino , Disfunción Cognitiva/fisiopatología , Disfunción Cognitiva/etiología , Envejecimiento/fisiología , Envejecimiento/psicología , Anciano de 80 o más Años , Velocidad al Caminar/fisiología , Marcha/fisiología , Estudios de Seguimiento , Cognición/fisiología
4.
J Am Geriatr Soc ; 72(3): 850-857, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38196332

RESUMEN

BACKGROUND: Efficacy and validity of the MoCA for cognitive screening in ethnoculturally and linguistically diverse settings is unclear. We sought to examine the utility and discriminative validity of the Spanish and English MoCA versions to identify cognitive impairment among diverse community-dwelling older adults. METHODS: Participants aged ≥65 with cognitive concerns attending outpatient primary care in Bronx, NY, were recruited. MoCA and neuropsychological measures were administered in Spanish or English, and a neuropsychologist determined cognitive status (normal with subjective cognitive concerns [SCC], mild cognitive impairment [MCI], and dementia). One-way ANOVA compared cognitive statuses. ROC analyses identified optimal MoCA cutpoints for discriminating possible cognitive impairment. RESULTS: There were 231 participants, with mean age 73, 72% women, 43% Hispanic; 39% Black/African American; 113 (49%) completed testing in English and 118 (51%) in Spanish. Overall MoCA mean was 17.7 (SD = 4.3). Neuropsychological assessment identified 90 as cognitively normal/SCC, average MoCA 19.9 (SD = 4.1), 133 with MCI, average MoCA 16.6 (SD = 3.7), and 8 with dementia, average MoCA 10.6 (SD = 3.1). Mean English MoCA average was 18.6 (SD = 4.1) versus Spanish 16.7 (SD = 4.3). The published cutpoint ≤23 for MCI yielded a high false-positive rate (79%). ROC analyses identified ≤18.5 as the score to identify MCI or dementia using the English MoCA (65% sensitivity; 77% specificity) and ≤16.5 for the Spanish MoCA (64% sensitivity;73% specificity) in this sample of older adults with cognitive concerns. CONCLUSIONS: Current MoCA cutpoints were inappropriately high in a culturally/linguistically diverse urban setting, leading to a high false-positive rate. Lower Spanish and English MoCA cutpoints may improve diagnostic accuracy for identifying cognitive impairment in this group, highlighting the need for the creation and validation of accurate cognitive screeners for ethnoculturally and linguistically diverse older adults.


Asunto(s)
Disfunción Cognitiva , Demencia , Humanos , Anciano , Femenino , Masculino , Sensibilidad y Especificidad , Pruebas de Estado Mental y Demencia , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/psicología , Pruebas Neuropsicológicas , Demencia/diagnóstico , Atención Primaria de Salud , Reproducibilidad de los Resultados
5.
Nature ; 624(7990): 164-172, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38057571

RESUMEN

Animal studies show aging varies between individuals as well as between organs within an individual1-4, but whether this is true in humans and its effect on age-related diseases is unknown. We utilized levels of human blood plasma proteins originating from specific organs to measure organ-specific aging differences in living individuals. Using machine learning models, we analysed aging in 11 major organs and estimated organ age reproducibly in five independent cohorts encompassing 5,676 adults across the human lifespan. We discovered nearly 20% of the population show strongly accelerated age in one organ and 1.7% are multi-organ agers. Accelerated organ aging confers 20-50% higher mortality risk, and organ-specific diseases relate to faster aging of those organs. We find individuals with accelerated heart aging have a 250% increased heart failure risk and accelerated brain and vascular aging predict Alzheimer's disease (AD) progression independently from and as strongly as plasma pTau-181 (ref. 5), the current best blood-based biomarker for AD. Our models link vascular calcification, extracellular matrix alterations and synaptic protein shedding to early cognitive decline. We introduce a simple and interpretable method to study organ aging using plasma proteomics data, predicting diseases and aging effects.


Asunto(s)
Envejecimiento , Biomarcadores , Enfermedad , Salud , Especificidad de Órganos , Proteoma , Proteómica , Adulto , Humanos , Envejecimiento/sangre , Enfermedad de Alzheimer/sangre , Biomarcadores/sangre , Encéfalo/metabolismo , Disfunción Cognitiva/sangre , Proteoma/análisis , Aprendizaje Automático , Estudios de Cohortes , Progresión de la Enfermedad , Insuficiencia Cardíaca/sangre , Matriz Extracelular/metabolismo , Sinapsis/metabolismo , Calcificación Vascular/sangre , Corazón
6.
JMIR Res Protoc ; 12: e49933, 2023 Aug 17.
Artículo en Inglés | MEDLINE | ID: mdl-37590054

RESUMEN

BACKGROUND: The southern India state of Kerala has among the highest proportion of older adults in its population in the country. An increase in chronic age-related diseases such as dementia is expected in the older Kerala population. Identifying older individuals early in the course of cognitive decline offers the best hope of introducing preventive measures early and planning management. However, the epidemiology and pathogenesis of predementia syndromes at the early stages of cognitive decline in older adults are not well established in India. OBJECTIVE: The Kerala Einstein Study (KES) is a community-based cohort study that was established in 2008 and is based in the Kozhikode district in Kerala state. KES aims to establish risk factors and brain substrates of motoric cognitive risk syndrome (MCR), a predementia syndrome characterized by the presence of slow gait and subjective cognitive concerns in individuals without dementia or disability. This protocol describes the study design and procedures for this KES project. METHODS: KES is proposing to enroll a sample of 1000 adults ≥60 years old from urban and rural areas in the Kozhikode district of Kerala state: 200 recruited in the previous phase of KES and 800 new participants to be recruited in this project. MCR is the cognitive phenotype of primary interest. The associations between previously established risk factors for dementia as well as novel risk factors (apathy and traumatic brain injury) and MCR will be examined in KES. Risk factor profiles for MCR will be compared between urban and rural residents as well as with individuals who meet the criteria for mild cognitive impairment (MCI). Cognitive and physical function, medical history and medications, sociodemographic characteristics, lifestyle patterns, and activities of daily living will be evaluated. Participants will also undergo magnetic resonance imaging and electrocardiogram investigations. Longitudinal follow-up is planned in a subset of participants as a prelude to future longitudinal studies. RESULTS: KES (2R01AG039330-07) was funded by the US National Institutes of Health in September 2019 and received approval from the Indian Medical Council of Research to start the study in June 2021. We had recruited 433 new participants from urban and rural sites in Kozhikode as of May 2023: 41.1% (178/433) women, 67.7% (293/433) rural residents, and 13.4% (58/433) MCR cases. Enrollment is actively ongoing at all the KES recruitment sites. CONCLUSIONS: KES will provide new insights into risk factors and brain substrates associated with MCR in India and will help guide future development of regionally specific preventive interventions for dementia. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/49933.

7.
Front Aging Neurosci ; 15: 1125114, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37065459

RESUMEN

Identification of novel, non-invasive, non-cognitive based markers of Alzheimer's disease (AD) and related dementias are a global priority. Growing evidence suggests that Alzheimer's pathology manifests in sensory association areas well before appearing in neural regions involved in higher-order cognitive functions, such as memory. Previous investigations have not comprehensively examined the interplay of sensory, cognitive, and motor dysfunction with relation to AD progression. The ability to successfully integrate multisensory information across multiple sensory modalities is a vital aspect of everyday functioning and mobility. Our research suggests that multisensory integration, specifically visual-somatosensory integration (VSI), could be used as a novel marker for preclinical AD given previously reported associations with important motor (balance, gait, and falls) and cognitive (attention) outcomes in aging. While the adverse effect of dementia and cognitive impairment on the relationship between multisensory functioning and motor outcomes has been highlighted, the underlying functional and neuroanatomical networks are still unknown. In what follows we detail the protocol for our study, named The VSI Study, which is strategically designed to determine whether preclinical AD is associated with neural disruptions in subcortical and cortical areas that concurrently modulate multisensory, cognitive, and motor functions resulting in mobility decline. In this longitudinal observational study, a total of 208 community-dwelling older adults with and without preclinical AD will be recruited and monitored yearly. Our experimental design affords assessment of multisensory integration as a new behavioral marker for preclinical AD; identification of functional neural networks involved in the intersection of sensory, motor, and cognitive functioning; and determination of the impact of early AD on future mobility declines, including incident falls. Results of The VSI Study will guide future development of innovative multisensory-based interventions aimed at preventing disability and optimizing independence in pathological aging.

8.
Neurodegener Dis Manag ; 12(4): 171-184, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35603666

RESUMEN

Cognitive impairment related to dementia is under-diagnosed in primary care despite availability of numerous cognitive assessment tools; under-diagnosis is more prevalent for members of racial and ethnic minority groups. Clinical decision-support systems may improve rates of primary care providers responding to positive cognitive assessments with appropriate follow-up. The 5-Cog study is a randomized controlled trial in 1200 predominantly Black and Hispanic older adults from an urban underserved community who are presenting to primary care with cognitive concerns. The study will validate a novel 5-minute cognitive assessment coupled with an electronic medical record-embedded decision tree to overcome the barriers of current cognitive assessment paradigms in primary care and facilitate improved dementia care.


Dementia is common, though under-recognized, in older adults (OAs). Primary care providers (PCPs) miss opportunities to help patients and their families manage the disease because of failure to, or delay to, make an appropriate diagnosis. Black and Hispanic OAs are more likely than White OAs to experience delayed diagnosis. Most available memory tests are too long for practical use by PCPs, and are ill suited to patients of diverse language, cultural and educational backgrounds. Studies have shown that even when patients test positive for dementia in primary care, PCPs often do not take follow-up action. Our improved memory test, the 5-Cog, is brief (5 min), not biased by language issues (uses pictures and symbols instead of words), and simple (doesn't require expensive technology and complex staff training). The 5-Cog is paired with a clinical decision support tool, providing tailored recommendations directly into the patient's medical record, and making it easier for PCPs to take appropriate action. This study will evaluate whether the 5-Cog paradigm results in improved dementia care.


Asunto(s)
Disfunción Cognitiva , Demencia , Anciano , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/terapia , Demencia/diagnóstico , Demencia/terapia , Etnicidad , Humanos , Grupos Minoritarios , Ensayos Clínicos Controlados Aleatorios como Asunto
9.
Am J Geriatr Psychiatry ; 30(8): 917-921, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34974974

RESUMEN

The purpose of the Problem Adaptation Therapy - Montefiore Health System (PATH-MHS) pilot program was to demonstrate the feasibility and effectiveness of PATH across a culturally, educationally, and functionally diverse cohort of older adults. METHODS: Clinicians referred 145 participants with depression and cognitive impairment to PATH-MHS. We completed analyses of the change in depression, disability and the association between baseline characteristics and remission of depression. RESULTS: Most participants were Hispanic or Non-Hispanic Black and 54.7% (76) were primary Spanish speakers. Overall, there were significant decreases in the mean PHQ-9 and WHODAS 2.0 scores. In logistic regression models, neither age, education, gender, race/ethnicity, language nor long-term care status was significantly associated with remission of depression. CONCLUSIONS: This study demonstrates that we were able to engage a diverse, cognitively impaired, and frail cohort of older adults in PATH-MHS with significant reductions in depression and disability.


Asunto(s)
Depresión , Anciano Frágil , Anciano , Depresión/epidemiología , Depresión/terapia , Etnicidad , Estudios de Factibilidad , Hispánicos o Latinos , Humanos
10.
J Alzheimers Dis ; 81(2): 545-555, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33814436

RESUMEN

BACKGROUND: Very few studies have explored the utility of subjective cognitive complaints (SCCs) in primary care settings. OBJECTIVE: We aim to investigate associations between SCCs (item-level), objective cognitive function (across domains and global), and mood in a diverse primary care population, including subjects with mild cognitive impairment. METHODS: We studied 199 (75.9%females; 57.8%Hispanics; 42.2%African Americans) older adults (mean age 72.5 years) with memory concerns at a primary care clinic. A five-item SCC questionnaire, and objective cognitive assessments, including the Montreal Cognitive Assessment (MoCA) and the Geriatric Depression Scale, were administered. RESULTS: Logistic regression analyses showed associations between SCC score and depressive symptoms. A memory-specific ("memory worsening") SCC predicted scores on the MoCA (p = 0.005) in Hispanics. CONCLUSION: SCCs are strongly linked to depressive symptoms in African Americans and Hispanics in a primary care setting; a specific type of SCC is related to global cognitive function in Hispanics.


Asunto(s)
Envejecimiento/psicología , Trastornos del Conocimiento/psicología , Cognición/fisiología , Disfunción Cognitiva/psicología , Atención Primaria de Salud/estadística & datos numéricos , Negro o Afroamericano , Anciano , Anciano de 80 o más Años , Trastornos del Conocimiento/diagnóstico , Comparación Transcultural , Depresión/epidemiología , Depresión/psicología , Femenino , Hispánicos o Latinos , Humanos , Masculino , Trastornos de la Memoria/psicología , Persona de Mediana Edad , Pruebas Neuropsicológicas , Encuestas y Cuestionarios
11.
Neurodegener Dis Manag ; 11(1): 83-89, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33172352

RESUMEN

The Covid-19 pandemic forced providers to alter their delivery of care to special populations, including older adults with cognitive impairment. The Montefiore-Einstein Center for the Aging Brain, a specialty multidisciplinary center for the evaluation and management of patients with neurodegenerative disorders, developed a coordinated approach (Coordinated Care At Risk/Remote Elderly program [CCARRE]) to reach our diverse population during the initial Covid-19 crisis in New York City, USA. In the tele-evaluation of the first 85 patients seen with CCARRE, we recognized unique factors that could improve patient care, lessen burden and optimize access to community resources. Lessons learned from the experience are shared.


Asunto(s)
Directivas Anticipadas , Cuidadores/psicología , Disfunción Cognitiva/terapia , Demencia/terapia , Seguridad del Paciente , Desarrollo de Programa , Telemedicina , Comunicación por Videoconferencia , Actividades Cotidianas , Anciano , Anciano de 80 o más Años , COVID-19 , Disfunción Cognitiva/diagnóstico , Asistencia Sanitaria Culturalmente Competente , Demencia/diagnóstico , Femenino , Humanos , Masculino , Ciudad de Nueva York , Determinantes Sociales de la Salud , Teléfono
12.
Aging Cell ; 19(11): e13250, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33089916

RESUMEN

Aging is a complex trait characterized by a diverse spectrum of endophenotypes. By utilizing the SomaScan® proteomic platform in 1,025 participants of the LonGenity cohort (age range: 65-95, 55.7% females), we found that 754 of 4,265 proteins were associated with chronological age. Pleiotrophin (PTN; ß[SE] = 0.0262 [0.0012]; p = 3.21 × 10-86 ), WNT1-inducible-signaling pathway protein 2 (WISP-2; ß[SE] = 0.0189 [0.0009]; p = 4.60 × 10-82 ), chordin-like protein 1 (CRDL1; ß[SE] = 0.0203[0.0010]; p = 1.45 × 10-77 ), transgelin (TAGL; ß[SE] = 0.0215 [0.0011]; p = 9.70 × 10-71 ), and R-spondin-1(RSPO1; ß[SE] = 0.0208 [0.0011]; p = 1.09 × 10-70 ), were the proteins most significantly associated with age. Weighted gene co-expression network analysis identified two of nine modules (clusters of highly correlated proteins) to be significantly associated with chronological age and demonstrated that the biology of aging overlapped with complex age-associated diseases and other age-related traits. The correlation between proteomic age prediction based on elastic net regression and chronological age was 0.8 (p < 2.2E-16). Pathway analysis showed that inflammatory response, organismal injury and abnormalities, cell and organismal survival, and death pathways were associated with aging. The present study made novel associations between a number of proteins and aging, constructed a proteomic age model that predicted mortality, and suggested possible proteomic signatures possessed by a cohort enriched for familial exceptional longevity.


Asunto(s)
Envejecimiento/fisiología , Mortalidad/tendencias , Plasma/metabolismo , Proteómica/métodos , Anciano , Femenino , Humanos , Masculino , Plasma/citología
13.
Cells ; 9(6)2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32492897

RESUMEN

While the growth hormone/insulin-like growth factor-1 (GH/IGF-1) pathway plays essential roles in growth and development, diminished signaling via this pathway in model organisms extends lifespan and health-span. In humans, circulating IGF-1 and IGF-binding proteins 3 and 1 (IGFBP-3 and 1), surrogate measures of GH/IGF-1 system activity, have not been consistently associated with morbidity and mortality. In a prospective cohort of independently-living older adults (n = 840, mean age 76.1 ± 6.8 years, 54.5% female, median follow-up 6.9 years), we evaluated the age- and sex-adjusted hazards for all-cause mortality and incident age-related diseases, including cardiovascular disease, diabetes, cancer, and multiple-domain cognitive impairment (MDCI), as predicted by baseline total serum IGF-1, IGF-1/IGFBP-3 molar ratio, IGFBP-3, and IGFBP-1 levels. All-cause mortality was positively associated with IGF-1/IGFBP-3 molar ratio (HR 1.28, 95% CI 1.05-1.57) and negatively with IGFBP-3 (HR 0.82, 95% CI 0.680-0.998). High serum IGF-1 predicted greater risk for MDCI (HR 1.56, 95% CI 1.08-2.26) and composite incident morbidity (HR 1.242, 95% CI 1.004-1.538), whereas high IGFBP-1 predicted lower risk for diabetes (HR 0.50, 95% CI 0.29-0.88). In conclusion, higher IGF-1 levels and bioavailability predicted mortality and morbidity risk, supporting the hypothesis that diminished GH/IGF-1 signaling may contribute to human longevity and health-span.


Asunto(s)
Proteína 1 de Unión a Factor de Crecimiento Similar a la Insulina/sangre , Proteína 3 de Unión a Factor de Crecimiento Similar a la Insulina/sangre , Factor I del Crecimiento Similar a la Insulina/metabolismo , Morbilidad , Mortalidad , Anciano , Estudios de Cohortes , Femenino , Humanos , Masculino , Factores de Riesgo
14.
J Am Geriatr Soc ; 66(8): 1598-1602, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29808583

RESUMEN

OBJECTIVES: To describe the psychometric properties of the Picture-based Memory Impairment Screen (PMIS) in a multidisciplinary memory disorder center serving an ethnically and educationally diverse community. DESIGN: Cross-sectional cohort study. SETTING: Montefiore Center for Aging Brain (CAB) PARTICIPANTS: Individuals with cognitive complaints (N=405; average age 76±10, 66% female). MEASUREMENTS: A geriatrician or neurologist administered the PMIS, and a neuropsychologist administered the Blessed Information, Memory, and Concentration (BIMC) test and determined whether participants had dementia, mild cognitive impairment (MCI), or subjective cognitive complaints (SCC). RESULTS: Mean PMIS scores were 4.0±2.6 in participants with dementia (n=194), 6.8±1.5 in those with MCI (n= 155), and 7.0±1.8 in those with SCC (n= 56) (p<.001). PMIS scores showed similar significant linear trends when analyzed according to ethnicity, education, sex, and language. The PMIS was negatively correlated with BIMC score (p<.001). The PMIS had positive predictive value of 77%, negative predictive value of 73%, sensitivity of 68%, and specificity of 81% to detect all-cause dementia in this population of individuals with cognitive complaints. CONCLUSION: The PMIS is a quick, valid screening tool to identify cognitive impairment in individuals with cognitive complaints that accounts for cultural and educational differences.


Asunto(s)
Disfunción Cognitiva/diagnóstico , Demencia/diagnóstico , Tamizaje Masivo/métodos , Trastornos de la Memoria/diagnóstico , Pruebas de Estado Mental y Demencia/normas , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Estudios Transversales , Femenino , Humanos , Masculino , Fotograbar , Valor Predictivo de las Pruebas , Psicometría , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
15.
Neurology ; 89(16): 1698-1706, 2017 Oct 17.
Artículo en Inglés | MEDLINE | ID: mdl-28916534

RESUMEN

OBJECTIVE: To characterize pretreatment behavioral problems and differential effects of initial therapy in children with childhood absence epilepsy (CAE). METHODS: The Child Behavior Checklist (CBCL) was administered at baseline, week 16-20, and month 12 visits of a randomized double-blind trial of ethosuximide, lamotrigine, and valproate. Total problems score was the primary outcome measure. RESULTS: A total of 382 participants at baseline, 310 participants at the week 16-20 visit, and 168 participants at the month 12 visit had CBCL data. At baseline, 8% (95% confidence interval [CI] 6%-11%) of children with CAE had elevated total problems scores (mean 52.9 ± 10.91). At week 16-20, participants taking valproic acid had significantly higher total problems (51.7 [98.3% CI 48.6-54.7]), externalizing problems (51.4 [98.3% CI 48.5-54.3]), attention problems (57.8 [98.3% CI 55.6-60.0]), and attention-deficit/hyperactivity problems (55.8 [98.3% CI 54.1-57.6]) scores compared to participants taking ethosuximide (46.5 [98.3% CI 43.4-49.6]; 45.8 [98.3% CI 42.9-48.7]; 54.6 [98.3% CI 52.4-56.9]; 53.0 [98.3% CI 51.3-54.8]). Lack of seizure freedom and elevated week 16-20 Conner Continuous Performance Test confidence index were associated with worse total problems scores. At month 12, participants taking valproic acid had significantly higher attention problems scores (57.9 [98.3% CI 55.6-60.3]) compared to participants taking ethosuximide (54.5 [95% CI 52.1-56.9]). CONCLUSIONS: Pretreatment and ongoing behavioral problems exist in CAE. Valproic acid is associated with worse behavioral outcomes than ethosuximide or lamotrigine, further reinforcing ethosuximide as the preferred initial therapy for CAE. CLINICALTRIALSGOV IDENTIFIER: NCT00088452. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that for children with CAE, valproic acid is associated with worse behavioral outcomes than ethosuximide or lamotrigine.


Asunto(s)
Anticonvulsivantes/uso terapéutico , Trastornos de la Conducta Infantil/etiología , Epilepsia Tipo Ausencia/complicaciones , Epilepsia Tipo Ausencia/tratamiento farmacológico , Adolescente , Lista de Verificación , Niño , Trastornos de la Conducta Infantil/diagnóstico , Trastornos de la Conducta Infantil/tratamiento farmacológico , Preescolar , Estudios Cruzados , Método Doble Ciego , Electroencefalografía , Etosuximida/uso terapéutico , Femenino , Estudios de Seguimiento , Humanos , Lamotrigina , Masculino , Pruebas Neuropsicológicas , Evaluación de Resultado en la Atención de Salud , Triazinas/uso terapéutico , Ácido Valproico/uso terapéutico
16.
Epilepsy Behav ; 64(Pt A): 283-288, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27794237

RESUMEN

OBJECTIVE: The objective of this study was to determine early developmental and cognitive outcomes of children with febrile status epilepticus (FSE) one month and one year after FSE. METHODS: One hundred ninety four children with FSE were evaluated on measures of cognition, receptive language, and memory as part of the FEBSTAT study and compared with 100 controls with simple febrile seizures (FSs). RESULTS: Children with FSE did not differ dramatically on tasks compared with FS controls at one month after FSE but demonstrated slightly weaker motor development (p=0.035) and receptive language (p=0.034) at one year after FSE. Performances were generally within the low average to average range. Within the FSE cohort, non-White children performed weaker on many of the tasks compared with Caucasian children. At the one-year visit, acute hippocampal T2 findings on MRI were associated with weaker receptive language skills (p=0.0009), and human herpes virus 6 or 7 (HHV6/7) viremia was associated with better memory performances (p=0.047). CONCLUSION: Febrile status epilepticus does not appear to be associated with significant cognitive impairment on early developmental measures, although there is a trend for possible receptive language and motor delay one year after FSE. Further follow-up, which is in progress, is necessary to track long-term cognitive functioning.


Asunto(s)
Cognición/fisiología , Lenguaje , Memoria/fisiología , Convulsiones Febriles/psicología , Estado Epiléptico/psicología , Preescolar , Femenino , Hipocampo/diagnóstico por imagen , Humanos , Lactante , Imagen por Resonancia Magnética , Masculino , Neuroimagen , Pruebas Neuropsicológicas , Convulsiones Febriles/complicaciones , Convulsiones Febriles/diagnóstico por imagen , Estado Epiléptico/complicaciones , Estado Epiléptico/diagnóstico por imagen
17.
Aging (Albany NY) ; 8(10): 2414-2424, 2016 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-27744417

RESUMEN

Mutations that reduce somatotropic signaling result in improved lifespan and health-span in model organisms and humans. However, whether reduced circulating insulin-like growth factor-I (IGF-I) level is detrimental to cognitive and muscle function in older adults remains understudied. A cross-sectional analysis was performed in Ashkenazi Jews with exceptional longevity (age ≥95 years). Cognition was assessed using the Mini-Mental State Examination and muscle function with the chair rise test, grip-strength, and gait speed. Muscle mass was estimated using the skeletal muscle index. Serum IGF-I was measured with liquid chromatography mass spectrometry. In gender stratified age-adjusted logistic regression analysis, females with IGF-I levels in the first tertile had lower odds of being cognitively impaired compared to females with IGF-I levels within the upper two tertiles, OR (95% CI) 0.39 (0.19-0.82). The result remained significant after adjustment for multiple parameters. No significant association was identified in males between IGF-I and cognition. No relationship was found between IGF-I tertiles and muscle function and muscle mass in females or males. Lower circulating IGF-I is associated with better cognitive function in females with exceptional longevity, with no detriment to skeletal muscle mass and function.


Asunto(s)
Cognición/fisiología , Fuerza de la Mano/fisiología , Factor I del Crecimiento Similar a la Insulina/metabolismo , Longevidad/fisiología , Músculo Esquelético/fisiología , Anciano de 80 o más Años , Estudios Transversales , Femenino , Marcha/fisiología , Humanos , Masculino , Pruebas Neuropsicológicas
18.
Neurology ; 81(18): 1572-80, 2013 Oct 29.
Artículo en Inglés | MEDLINE | ID: mdl-24089388

RESUMEN

OBJECTIVE: To determine the neurocognitive deficits associated with newly diagnosed untreated childhood absence epilepsy (CAE), develop a model describing the factorial structure of items measuring academic achievement and 3 neuropsychological constructs, and determine short-term differential neuropsychological effects on attention among ethosuximide, valproic acid, and lamotrigine. METHODS: Subjects with newly diagnosed CAE entering a double-blind, randomized controlled clinical trial had neuropsychological testing including assessments of general intellectual functioning, attention, memory, executive function, and achievement. Attention was reassessed at the week 16-20 visit. RESULTS: At study entry, 36% of the cohort exhibited attention deficits despite otherwise intact neurocognitive functioning. Structural equation modeling of baseline neuropsychological data revealed a direct sequential effect among attention, memory, executive function, and academic achievement. At the week 16-20 visit, attention deficits persisted even if seizure freedom was attained. More subjects receiving valproic acid (49%) had attention deficits than subjects receiving ethosuximide (32%) or lamotrigine (24%) (p = 0.0006). Parental assessment did not reliably detect attention deficits before or after treatment (p < 0.0001). CONCLUSIONS: Children with CAE have a high rate of pretreatment attentional deficits that persist despite seizure freedom. Rates are disproportionately higher for valproic acid treatment compared with ethosuximide or lamotrigine. Parents do not recognize these attentional deficits. These deficits present a threat to academic achievement. Vigilant cognitive and behavioral assessment of these children is warranted. CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that valproic acid is associated with more significant attentional dysfunction than ethosuximide or lamotrigine in children with newly diagnosed CAE.


Asunto(s)
Anticonvulsivantes/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Trastorno por Déficit de Atención con Hiperactividad/etiología , Trastornos del Conocimiento/etiología , Epilepsia Tipo Ausencia/complicaciones , Adolescente , Análisis de Varianza , Niño , Preescolar , Estudios de Cohortes , Método Doble Ciego , Escolaridad , Electroencefalografía , Función Ejecutiva , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Resultado del Tratamiento
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