Publications

Featured

Line graph showing changes in NAD⁺ levels over 20 weeks for two study groups, with individual participant data and average fold change from baseline
November 12, 2025

Effects of Nicotinamide Riboside on NAD+ Levels, Cognition, and Symptom Recovery in Long-COVID: A Randomized Controlled Trial

Wu CY, Reynolds WC, Abril I, McManus AJ, Brenner C, González-Irizarry G, Gutiérrez-Martínez L, Sun O, Rosand J, Tanzi RE, Arnold SE, Guzmán-Vélez E. eClinicalMedicine.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
April 20, 2026

Subjective Cognitive Decline, and Its Cognitive and Emotional Correlates in Peruvian Older Adults

Soto-Añari M, Rivera-Fernández C, Montemurro M, Ceric F, Tejada MDC, Muñoz-Najar A, Carbajal MG, Guzmán-Vélez E, Quiroz YT. Dementia & Neuropsychologia.

2026
August 14, 2025

Sleep Quality and Efficiency in Adults with Post-Acute Sequelae of COVID-19

Gutiérrez-Martínez L, Reynolds WC, Abril I, González-Irizarry G, Ortiz-Acosta P, Mullington JM, Rosand J, Tanzi RE, Arnold SE, Guzmán-Vélez E. SLEEP Advances.

2025
July 1, 2025

Association Among Cardiorespiratory Fitness, Plasma Biomarkers of Pathology and Astrocyte Reactivity, and Cognition in Autosomal-Dominant Alzheimer's Disease

Guzmán-Vélez E, Aguillón D, Rivera-Hernández A, Baena AY, Londoño-Sotomayor N, Picard G, Kramer AF, Arnold SE, Caraballo-Gracia DI, Taylor JA, Quiroz YT. Journal of Alzheimer’s Disease.

2025
March 20, 2025

Risk Factors for Poor Sleep Quality and Subjective Cognitive Decline in Older Adults Living in the United States During the COVID-19 Pandemic

Pluim McDowell C, Martinez JE, Giudicessi A, Munera D, Vila-Castelar C, Guzmán-Vélez E, Ramirez-Gomez L, Duffy JF, Cronin-Golomb A, Quiroz YT. Healthcare.

2025
February 4, 2025

Physical Activity and Neurocognitive Symptoms in Older Adults During COVID-19 Pandemic

Ortiz-Acosta PK, Martínez JE, Vila-Castelar C, Fox-Fuller JT, Pluim C, Babulal GM, Ramírez-Gómez L, Munera D, Quiroz YT, Guzmán-Vélez E. Journal of Applied Gerontology.

2025
January 15, 2025

Cognitive and Alzheimer's Disease Biomarker Effects of Oral Nicotinamide Riboside (NR) Supplementation in Older Adults with Subjective Cognitive Decline and Mild Cognitive Impairment

Wu CY, Kupferschmid AC, Chen L, McManus AJ, Kivisäkk P, Galler JA, Schwab NA, DesRuisseaux LA, Williams VJ, Gerber J, Riley M, Young C, Guzmán-Vélez E, Dodge HH, Tanzi RE, Singer CM, Arnold SE. Alzheimer's & Dementia: Translational Research & Clinical Interventions.

2025
December 20, 2024

Next generation Brain Health: Transforming Global Research and Public Health to Promote Prevention of Dementia and Reduce Its Risk in Young Adult Populations

Farina FR, Bridgeman K, Gregory S, Crivelli L, Foote IF, Jutila OI, Kucikova L, Mariano LI, Nguyen KH, Thayanandan T, Akindejoye F, Butler J, Calandri IL, Čepukaitytė G, Chiesa ST, Dawson WD, Deckers K, Cruz-Góngora V, Dounavi ME, Govia I, Guzmán-Vélez E, Heikal SA, Hill-Jarrett TG, Ibáñez A, James BD, McGlinchey E, Mullin DS, Muniz-Terrera G, Pintado Caipa M, Qansuwa EM, Robinson L, Santuccione Chadha A, Shannon OM, Su L, Weidner W, Booi L. The Lancet Healthy Longevity Home.

2024
November 28, 2024

Relationship Between Physical Activity and Biomarkers of Pathology and Neuroinflammation in Preclinical Autosomal-Dominant Alzheimer's Disease

Guzmán-Vélez E, Rivera-Hernández A, Fabrega S, Oliveira G, Martínez JE, Baena A, Picard G, Lopera F, Arnold SE, Taylor JA, Quiroz YT. Alzheimer's & Dementia: Translational Research & Clinical Interventions.

2024
September 1, 2024

Cognitive Outcomes in Autosomal-Dominant Alzheimer's Disease: A Comprehensive Review from a Colombian Kindred with the Presenilin-1 E280A Mutation

Giudicessi A, McDowell CP, Martinez JE, Baena A, Vila-Castelar C, Norton D, Aguirre-Acevedo DC, Tirado V, Bocanegra Y, Guzman-Velez E, Lopera F, Cronin-Golomb A, Quiroz YT. Journal of Alzheimer’s Disease.

2024
March 1, 2023

Associations Among Loneliness, Purpose in Life and Subjective Cognitive Decline in Ethnoracially Diverse Older Adults Living in the United States

Pluim CF, Anzai JAU, Martinez JE, Munera D, Garza-Naveda AP, Vila-Castelar C, Guzmán-Vélez E, Ramirez-Gomez L, Bustin J, Serrano CM, Babulal GM, Okada de Oliveira M, Quiroz YT. Journal of Applied Gerontology.

2023
July 1, 2022

Subjective Cognitive Decline and its Relation to Verbal Memory and Sex in Cognitively Unimpaired Individuals from a Colombian Cohort with Autosomal-Dominant Alzheimer's Disease

Martinez JE, Pardilla-Delgado E, Guzmán-Vélez E, Vila-Castelar C, Amariglio R, Gatchel J, Aguirre-Acevedo DC, Bocanegra Y, Baena A, Henao E, Tirado V, Muñoz C, Giraldo-Chica M, Lopera F, Quiroz YT. Journal of the International Neuropsychological Society.

2022
April 2, 2022

Amyloid-β and Tau Pathologies Relate to Distinctive Brain Dysconnectomics in Preclinical Autosomal-Dominant Alzheimer's Disease

Guzmán-Vélez E, Diez I, Schoemaker D, Pardilla-Delgado E, Vila-Castelar C, Fox-Fuller JT, Baena A, Sperling RA, Johnson KA, Lopera F, Sepulcre J, Quiroz YT. Proceedings of the National Academy of Sciences.

2022
March 8, 2022

A Cultural Approach to Dementia — Insights from US Latino and Other Minoritized Groups

Vila-Castelar C, Fox-Fuller JT, Guzmán-Vélez E, Schoemaker D, Quiroz YT. Nature Reviews Neurology.

2022
August 1, 2021

Neuroticism Is Associated with Tau Pathology in Cognitively Unimpaired Individuals with Autosomal Dominant Alzheimer's Disease

Baena A, Bocanegra Y, Torres V, Vila-Castelar C, Guzmán-Vélez E, Fox-Fuller JT, Gatchel JR, Sánchez J, Pluim CF, Ramirez-Gómez L, Martínez J, Pineda D, Lopera F, Quiroz YT. Journal of Alzheimer’s Disease.

2021
July 4, 2021

A Spanish Neuropsychological Battery Discriminates Between the Behavioral Variant of Frontotemporal Dementia and Primary Progressive Aphasia in a Colombian Sample

Velilla L, Hernández J, Giraldo-Chica M, Guzmán-Vélez E, Quiroz Y, Lopera F. Frontiers in Neurology.

2021
July 1, 2021

Global Cardiovascular Risk Profile and Cerebrovascular Abnormalities in Presymptomatic Individuals with CADASIL or Autosomal Dominant Alzheimer's Disease

Schoemaker D, Velilla-Jimenez L, Zuluaga Y, Baena A, Ospina C, Bocanegra Y, Alvarez S, Ochoa-Escudero M, Guzmán-Vélez E, Martinez J, Lopera F, Arboleda-Velasquez JF, Quiroz YT. Journal of Alzheimer’s Disease.

2021
June 1, 2021

Normative Data Stratified by Age and Education for a Spanish Neuropsychological Test Battery: Results from the Colombian Alzheimer’s Prevention Initiative Registry

Torres VL, Vila-Castelar C, Bocanegra Y, Baena A, Guzmán-Vélez E, Aguirre-Acevedo DC, Tirado V, Munoz C, Henao E, Moreno S, Giraldo M, Acosta N, Rios Romenets S, Langbaum JB, Cho W, Reiman EM, Tariot PN, Rosselli M, Quiroz YT, Lopera F. Applied Neuropsychology: Adult.

2021
May 12, 2021

Associations Between Plasma Neurofilament Light, In Vivo Brain Pathology, and Cognition in Non-Demented Individuals with Autosomal-Dominant Alzheimer's Disease

Guzmán-Vélez E, Zetterberg H, Fox-Fuller JT, Vila-Castelar C, Sanchez JS, Baena A, Garcia-Ospina G, Aguillon D, Pardilla-Delgado E, Gatchel JR, Sperling RA, Johnson K, Reiman EM, Blennow K, Lopera F, Quiroz YT.

2021
May 10, 2021

Associations Between Subregional Thalamic Volume and Brain Pathology in Autosomal Dominant Alzheimer's Disease

Castelar C, Fox-Fuller JT, Guzmán-Vélez E, Martínez J, Alvarez S, Ochoa-Escudero M, Lopera F, Quiroz YT. Brain Communications

2021
April 27, 2021

The Impact of COVID-19 on the Well-Being and Cognition of Older Adults Living in the United States and Latin America

Babulal GM, Torres VL, Acosta D, Agüero C, Aguilar-Navarro S, Amariglio R, Ussui JA, Baena A, Bocanegra Y, Brucki SMD, Bustin J, Cabrera DM, Custodio N, Diaz MM, Peñailillo LD, Franco I, Gatchel JR, Garza-Naveda AP, González Lara M, Gutiérrez-Gutiérrez L, Guzmán-Vélez E, Hanseeuw BJ, Jimenez-Velazquez IZ, Rodríguez TL, Llibre-Guerra J, Marquine MJ, Martinez J, Medina LD, Miranda-Castillo C, Morlett Paredes A, Munera D, Nuñez-Herrera A, de Oliveira MO, Palmer-Cancel SJ, Pardilla-Delgado E, Perales-Puchalt J, Pluim C, Ramirez-Gomez L, Rentz DM, Rivera-Fernández C, Rosselli M, Serrano CM, Suing-Ortega MJ, Slachevsky A, Soto-Añari M, Sperling RA, Torrente F, Thumala D, Vannini P, Vila-Castelar C, Yañez-Escalante T, Quiroz YT. eClinicalMedicine.

2021
January 15, 2021

Longitudinal Amyloid and Tau Accumulation in Autosomal Dominant Alzheimer's Disease: Findings from the Colombia-Boston (COLBOS) Biomarker study

Sanchez JS, Hanseeuw BJ, Lopera F, Sperling RA, Baena A, Bocanegra Y, Aguillon D, Guzmán-Vélez E, Pardilla-Delgado E, Ramirez-Gomez L, Vila-Castelar C, Martinez JE, Fox-Fuller JT, Ramos C, Ochoa-Escudero M, Alvarez S, Jacobs HIL, Schultz AP, Gatchel JR, Becker JA, Katz SR, Mayblyum DV, Price JC, Reiman EM, Johnson KA, Quiroz YT. Alzheimer's Research & Therapy.

2021
January 5, 2021

Association Between Visual Memory and In Vivo Amyloid and Tau Pathology in Preclinical Autosomal Dominant Alzheimer’s Disease

Bocanegra Y, Fox-Fuller JT, Baena A, Guzmán-Vélez E, Vila-Castelar C, Martínez J, Torrico-Teave H, Lopera F, Quiroz YT. Journal of the International Neuropsychological Society.

2021
January 5, 2021

Cortical Thickness Across the Lifespan in a Colombian Cohort with Autosomal-Dominant Alzheimer's Disease: A Cross-Sectional Study

Fox-Fuller JT, Torrico-Teave H, d'Oleire Uquillas F, Chen K, Su Y, Chen Y, Brickhouse M, Sanchez JS, Aguero C, Jacobs HIL, Hampton O, Guzmán-Vélez E, Vila-Castelar C, Aguirre-Acevedo DC, Baena A, Artola A, Martinez J, Pluim CF, Alvarez S, Ochoa-Escudero M, Reiman EM, Sperling RA, Lopera F, Johnson KA, Dickerson BC, Quiroz YT. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring.

2021
January 4, 2021

PET Evidence of Preclinical Cerebellar Amyloid Plaque Deposition in Autosomal Dominant Alzheimer's Disease-Causing Presenilin-1 E280A Mutation Carriers

Ghisays V, Lopera F, Goradia DD, Protas HD, Malek-Ahmadi MH, Chen Y, Devadas V, Luo J, Lee W, Baena A, Bocanegra Y, Guzmán-Vélez E, Pardilla-Delgado E, Vila-Castelar C, Fox-Fuller JT, Hu N, Clayton D, Thomas RG, Alvarez S, Espinosa A, Acosta-Baena N, Giraldo MM, Rios-Romenets S, Langbaum JB, Chen K, Su Y, Tariot PN, Quiroz YT, Reiman EM; API ADAD Colombia Trial Group. NeuroImage: Clinical.

2021
November 1, 2020

Hooked on a Feeling: Influence of Brief Exposure to Familiar Music on Feelings of Emotion in Individuals with Alzheimer's Disease

Reschke-Hernández AE, Belfi AM, Guzmán-Vélez E, Tranel D. Journal of Alzheimer’s Disease.

2020
October 1, 2020

Examining Sex Differences in Markers of Cognition and Neurodegeneration in Autosomal Dominant Alzheimer's Disease: Preliminary Findings from the Colombian Alzheimer's Prevention Initiative Biomarker Study

Vila-Castelar C, Guzmán-Vélez E, Pardilla-Delgado E, Buckley RF, Bocanegra Y, Baena A, Fox-Fuller JT, Tirado V, Muñoz C, Giraldo M, Acosta-Baena N, Rios-Romenets S, Langbaum JB, Tariot PN, Lopera F, Reiman EM, Quiroz YT. Journal of Alzheimer’s Disease.

2020
September 15, 2020

The Latin American Spanish version of the Face-Name Associative Memory Exam is Sensitive to Cognitive and Pathological Changes in Preclinical Autosomal Dominant Alzheimer's Disease

Vila-Castelar C, Muñoz N, Papp KV, Amariglio RE, Baena A, Guzmán-Vélez E, Bocanegra Y, Sanchez JS, Reiman EM, Johnson KA, Sperling RA, Lopera F, Rentz DM, Quiroz YT.

2020
September 8, 2020

Associative Memory and In Vivo Brain Pathology in Asymptomatic Presenilin-1 E280A Carriers

Guzmán-Vélez E, Martínez J, Papp K, Baena A, Vila-Castelar C, Artola A, Schultz AP, Bocanegra Y, Sanchez J, Rentz D, Tariot PN, Reiman EM, Sperling R, Johnson KA, Lopera F, Quiroz YT. Neurology.

2020
August 21, 2020

Visual Short-Term Memory Relates to Tau and Amyloid Burdens in Preclinical Autosomal Dominant Alzheimer's Disease

Norton DJ, Parra MA, Sperling RA, Baena A, Guzman-Velez E, Jin DS, Andrea N, Khang J, Schultz A, Rentz DM, Pardilla-Delgado E, Fuller J, Johnson K, Reiman EM, Lopera F, Quiroz YT. Alzheimer's Research & Therapy.

2020
June 1, 2020

Plasma Neurofilament Light Chain in the Presenilin 1 E280A Autosomal Dominant Alzheimer's Disease Kindred: A Cross-Sectional and Longitudinal Cohort Study

Quiroz YT, Zetterberg H, Reiman EM, Chen Y, Su Y, Fox-Fuller JT, Garcia G, Villegas A, Sepulveda-Falla D, Villada M, Arboleda-Velasquez JF, Guzmán-Vélez E, Vila-Castelar C, Gordon BA, Schultz SA, Protas HD, Ghisays V, Giraldo M, Tirado V, Baena A, Munoz C, Rios-Romenets S, Tariot PN, Blennow K, Lopera F. The Lancet Neurology.

2020
March 1, 2020

Association of Subjective Cognitive Decline with Markers of Brain Pathology in Preclinical Autosomal Dominant Alzheimer's Disease

Gatchel JR, Lopera F, Norton DJ, Baena A, Guzman-Velez E, Sanchez JS, d'Oleire Uquillas F, Schultz A, Vannini P, Artola A, Amariglio RE, Rentz DM, Tariot PN, Reiman EM, Johnson KA, Sperling RA, Marshall GA, Quiroz YT. Journal of Neurology, Neurosurgery & Psychiatry

2020
November 4, 2019

Resistance to Autosomal Dominant Alzheimer's Disease in an APOE3 Christchurch Homozygote: A Case Report

Arboleda-Velasquez JF, Lopera F, O'Hare M, Delgado-Tirado S, Marino C, Chmielewska N, Saez-Torres KL, Amarnani D, Schultz AP, Sperling RA, Leyton-Cifuentes D, Chen K, Baena A, Aguillon D, Rios-Romenets S, Giraldo M, Guzmán-Vélez E, Norton DJ, Pardilla-Delgado E, Artola A, Sanchez JS, Acosta-Uribe J, Lalli M, Kosik KS, Huentelman MJ, Zetterberg H, Blennow K, Reiman RA, Luo J, Chen Y, Thiyyagura P, Su Y, Jun GR, Naymik M, Gai X, Bootwalla M, Ji J, Shen L, Miller JB, Kim LA, Tariot PN, Johnson KA, Reiman EM, Quiroz YT. Nature Medicine.

2019
October 1, 2019

Associations of Physical Activity and β-Amyloid With Longitudinal Cognition and Neurodegeneration in Clinically Normal Older Adults

Rabin JS, Klein H, Kirn DR, Schultz AP, Yang HS, Hampton O, Jiang S, Buckley RF, Viswanathan A, Hedden T, Pruzin J, Yau WW, Guzmán-Vélez E, Quiroz YT, Properzi M, Marshall GA, Rentz DM, Johnson KA, Sperling RA, Chhatwal JP. JAMA Neurology.

2019
April 1, 2019

Biological and Cognitive Markers of Presenilin1 E280A Autosomal Dominant Alzheimer's Disease: A Comprehensive Review of the Colombian Kindred

Fuller JT, Cronin-Golomb A, Gatchel JR, Norton DJ, Guzmán-Vélez E, Jacobs HIL, Hanseeuw B, Pardilla-Delgado E, Artola A, Baena A, Bocanegra Y, Kosik KS, Chen K, Tariot PN, Johnson K, Sperling RA, Reiman EM, Lopera F, Quiroz YT. The Journal of Prevention of Alzheimer's Disease.

2019
February 4, 2019

Striatal Amyloid is Associated with Tauopathy and Memory Decline in Familial Alzheimer's Disease

Hanseeuw BJ, Lopera F, Sperling RA, Norton DJ, Guzman-Velez E, Baena A, Pardilla-Delgado E, Schultz AP, Gatchel J, Jin D, Chen K, Reiman EM, Johnson KA, Quiroz YT. Alzheimer's Research & Therapy.

2019
September 5, 2018

A Novel Two-day Intervention Reduces Stress in Caregivers of Persons with Dementia

Spalding-Wilson KN, Guzmán-Vélez E, Angelica J, Wiggs K, Savransky A, Tranel D. Alzheimer's & Dementia: Translational Research & Clinical Interventions.

2018
August 1, 2018

A Three-Factor Structure of Cognitive Functioning Among Unimpaired Carriers and Non-Carriers of Autosomal-Dominant Alzheimer's Disease

Guzmán-Vélez E, Jaimes S, Aguirre-Acevedo DC, Norton DJ, Papp KV, Amariglio R, Rentz D, Baena A, Henao E, Tirado V, Muñoz C, Giraldo M, Sperling RA, Lopera F, Quiroz YT. Journal of Alzheimer’s Disease.

2018
May 1, 2018

Association Between Amyloid and Tau Accumulation in Young Adults With Autosomal Dominant Alzheimer Disease

Quiroz YT, Sperling RA, Norton DJ, Baena A, Arboleda-Velasquez JF, Cosio D, Schultz A, Lapoint M, Guzman-Velez E, Miller JB, Kim LA, Chen K, Tariot PN, Lopera F, Reiman EM, Johnson KA. JAMA Neurology.

2018
June 1, 2016

Dissociable Contributions of Amygdala and Hippocampus to Emotion and Memory in Patients with Alzheimer's Disease

Guzmán-Vélez E, Warren DE, Feinstein JS, Bruss J, Tranel D. Hippocampus.

2016
June 1, 2016

Pharyngeal Collapsibility During Sleep is Elevated in Insulin-Resistant Females with Morbid Obesity

Llanos OL, Galiatsatos P, Guzmán-Vélez E, Patil SP, Smith PL, Magnuson T, Schweitzer M, Steele K, Polotsky VY, Schwartz AR. European Respiratory Journal.

2016
January 1, 2015

Does Bilingualism Contribute to Cognitive Reserve? Cognitive and Neural Perspectives

Guzmán-Vélez E, Tranel D. Neuropsychology.

2015
September 1, 2014

Feelings Without Memory in Alzheimer Disease

Guzmán-Vélez E, Feinstein JS, Tranel D. Cognitive And Behavioral Neurology.

2014
July 1, 2012

Factors Associated with Sustained Attention During an Activity Intervention in Persons with Dementia

Kolanowski A, Bossen A, Hill N, Guzman-Velez E, Litaker M. Dementia and Geriatric Cognitive Disorders.

2012
February 1, 2012

Interpreter-Mediated Neuropsychological Testing of Monolingual Spanish Speakers

Casas R, Guzmán-Vélez E, Cardona-Rodriguez J, Rodriguez N, Quiñones G, Izaguirre B, Tranel D. The Clinical Neuropsychologist.

2012
No items found matching those filters. Please reset.