1
|
Kalaria R, Maestre G, Mahinrad S, Acosta DM, Akinyemi RO, Alladi S, Allegri RF, Arshad F, Babalola DO, Baiyewu O, Bak TH, Bellaj T, Brodie‐Mends DK, Carrillo MC, Celestin K, Damasceno A, de Silva RK, de Silva R, Djibuti M, Dreyer AJ, Ellajosyula R, Farombi TH, Friedland RP, Garza N, Gbessemehlan A, Georgiou EE, Govia I, Grinberg LT, Guerchet M, Gugssa SA, Gumikiriza‐Onoria JL, Hogervorst E, Hornberger M, Ibanez A, Ihara M, Issac TG, Jönsson L, Karanja WM, Lee JH, Leroi I, Livingston G, Manes FF, Mbakile‐Mahlanza L, Miller BL, Musyimi CW, Mutiso VN, Nakasujja N, Ndetei DM, Nightingale S, Novotni G, Nyamayaro P, Nyame S, Ogeng'o JA, Ogunniyi A, de Oliveira MO, Okubadejo NU, Orrell M, Paddick S, Pericak‐Vance MA, Pirtosek Z, Potocnik FCV, Raman R, Rizig M, Rosselli M, Salokhiddinov M, Satizabal CL, Sepulveda‐Falla D, Seshadri S, Sexton CE, Skoog I, George‐Hyslop PHS, Suemoto CK, Thapa P, Udeh‐Momoh CT, Valcour V, Vance JM, Varghese M, Vera JH, Walker RW, Zetterberg H, Zewde YZ, Ismail O. The 2022 symposium on dementia and brain aging in low- and middle-income countries: Highlights on research, diagnosis, care, and impact. Alzheimers Dement 2024; 20:4290-4314. [PMID: 38696263 PMCID: PMC11180946 DOI: 10.1002/alz.13836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 05/04/2024]
Abstract
Two of every three persons living with dementia reside in low- and middle-income countries (LMICs). The projected increase in global dementia rates is expected to affect LMICs disproportionately. However, the majority of global dementia care costs occur in high-income countries (HICs), with dementia research predominantly focusing on HICs. This imbalance necessitates LMIC-focused research to ensure that characterization of dementia accurately reflects the involvement and specificities of diverse populations. Development of effective preventive, diagnostic, and therapeutic approaches for dementia in LMICs requires targeted, personalized, and harmonized efforts. Our article represents timely discussions at the 2022 Symposium on Dementia and Brain Aging in LMICs that identified the foremost opportunities to advance dementia research, differential diagnosis, use of neuropsychometric tools, awareness, and treatment options. We highlight key topics discussed at the meeting and provide future recommendations to foster a more equitable landscape for dementia prevention, diagnosis, care, policy, and management in LMICs. HIGHLIGHTS: Two-thirds of persons with dementia live in LMICs, yet research and costs are skewed toward HICs. LMICs expect dementia prevalence to more than double, accompanied by socioeconomic disparities. The 2022 Symposium on Dementia in LMICs addressed advances in research, diagnosis, prevention, and policy. The Nairobi Declaration urges global action to enhance dementia outcomes in LMICs.
Collapse
Grants
- P30AG066506 National Institute of Aging (NIA)
- P01 HD035897 NICHD NIH HHS
- R13 AG066391 NIA NIH HHS
- International Society for Neurochemistry
- National Council for Scientific and Technological Development
- R01 AG075775 NIA NIH HHS
- Bluefield Project, the Olav Thon Foundation, the Erling-Persson Family Foundation, Stiftelsen för Gamla Tjänarinnor, Hjärnfonden, Sweden
- U19 AG074865 NIA NIH HHS
- UH3 NS100605 NINDS NIH HHS
- R01AG072547 Multi partner Consortium for Dementia Research in Latino America-Dominican Republic (LATAM-FINGERS)
- ASP/06/RE/2012/18 University of Sri Jayewardenepura, Sri Lanka
- D43 TW011532 FIC NIH HHS
- UF1 NS125513 NINDS NIH HHS
- 2019-02397 Swedish Research Council
- FLR/R1/191813 UK Royal Society/African Academy of Sciences
- R01 AG054076 NIA NIH HHS
- GOK: Government of Karnataka
- R56 AG074467 NIA NIH HHS
- R21 AG069252 NIA NIH HHS
- RF1 AG059421 NIA NIH HHS
- R56 AG061837 NIA NIH HHS
- Global Brain Health Institute (GBHI)
- 1R01AG068472-01 National Institute of Aging (NIA)
- FCG/R1/201034 UK Royal Society/African Academy of Sciences
- Appel à Projet des Equipes Émergentes et Labellisées scheme (APREL)
- Alzheimer's Drug Discovery Foundation (ADDF)
- R01 AG062588 NIA NIH HHS
- 1R01AG070883 University of Wisconsin, Madison
- U01 HG010273 NHGRI NIH HHS
- R25 TW011214 FIC NIH HHS
- ASP/06/RE/2013/28 University of Sri Jayewardenepura, Sri Lanka
- R01 AG052496 NIA NIH HHS
- R01 AG080468 NIA NIH HHS
- RBM: Rotary Bangalore Midtown
- U19 AG068054 NIA NIH HHS
- ADSF-21-831376-C Alzheimer Drug Discovery Foundation
- ADSF-21-831377-C Alzheimer Drug Discovery Foundation
- Canadian Institute of Health Research
- U19 AG078558 NIA NIH HHS
- 1P30AG066546-01A1 National Institutes of Health (NIH)
- RF1 AG059018 NIA NIH HHS
- National Research Foundation (NRF)
- P30 AG062422 NIA NIH HHS
- LSIPL: M/s Lowes Services India Private Limited
- UKDRI-1003 UK Dementia Research Institute at UCL
- U19AG074865 Multi partner Consortium for Dementia Research in Latino America-Dominican Republic (LATAM-FINGERS)
- P01 AG019724 NIA NIH HHS
- National Institute for Health and Care Research, United Kingdom
- R01 AG066524 NIA NIH HHS
- RF1 AG063507 NIA NIH HHS
- WCUP/Ph.D./19B 2013 University of Sri Jayewardenepura (USJ), Sri Lanka
- WCUP/Ph.D./19/2013 University of Sri Jayewardenepura (USJ), Sri Lanka
- GBHI ALZ UK-21-724359 Pilot Award for Global Brain Health Leaders
- R01AG080468-01 National Institute of Aging (NIA)
- U01 AG058589 NIA NIH HHS
- R01 AG057234 NIA NIH HHS
- SP/CIN/2016/02) Ministry of Primary Industries, Sri Lanka
- R01 AG072547 NIA NIH HHS
- U01 AG051412 NIA NIH HHS
- P30 AG059305 NIA NIH HHS
- Alzheimer's Association, USA
- R35 AG072362 NIA NIH HHS
- R01 NS050915 NINDS NIH HHS
- P30 AG066546 NIA NIH HHS
- 2022-01018 Swedish Research Council
- U19 AG063893 NIA NIH HHS
- ALFGBG-71320 Swedish State Support for Clinical Research
- U01 AG052409 NIA NIH HHS
- 1R13AG066391-01 National Institutes of Health (NIH)
- R01 AG21051 NIH and the Fogarty International Center [FIC]
- DP1AG069870 National Institutes of Health (NIH)
- Marie Skłodowska-Curie
- U19 AG078109 NIA NIH HHS
- Chinese Neuroscience Society, China
- RF1 AG061872 NIA NIH HHS
- DP1 AG069870 NIA NIH HHS
- P30 AG066506 NIA NIH HHS
- Wellcome Trust
- U01HG010273 Multi partner Consortium for Dementia Research in Latino America-Dominican Republic (LATAM-FINGERS)
- JPND2021-00694 European Union Joint Programme - Neurodegenerative Disease Research
- ASP/06/RE/2010/07 University of Sri Jayewardenepura, Sri Lanka
- Rainwater Charitable Foundation - The Bluefield project to cure FTD, and Global Brain Health Institute
- 101053962 European Union's Horizon Europe
- R01 AG058464 NIA NIH HHS
- R01 AG068472 NIA NIH HHS
- Michael J. Fox Foundation for Parkinson's Research, USA
- UL1 TR001873 NCATS NIH HHS
- SG-21-814756 National Institutes of Health (NIH)
- 201809-2016862 Alzheimer Drug Discovery Foundation
- UK National Health Service, Newcastle University,
- R01 AG058918 NIA NIH HHS
- National Institute for Health and Care Research University College London Hospitals Biomedical Research Centre
- Wellcome Trust, UK
- ADSF-21-831381-C Alzheimer Drug Discovery Foundation
- Health Professionals Education Partnership Initiative Ethiopia
- ANR-09-MNPS-009-01 French National Research Agency
- R01 AG062562 NIA NIH HHS
- AXA Research Fund
- ICMR: Indian Council for Medical Research
- R01 AG070883 NIA NIH HHS
- International Society for Neurochemistry
- French National Research Agency
- AXA Research Fund
- National Center for Advancing Translational Sciences
- National Council for Scientific and Technological Development
- Swedish Research Council
Collapse
Affiliation(s)
- Raj Kalaria
- Translational and Clinical Research InstituteNewcastle UniversityNewcastle upon TyneUK
| | - Gladys Maestre
- Departments of Neuroscience and Human GeneticsUniversity of Texas Rio Grande ValleyOne W. University BlvdBrownsvilleTexasUSA
| | - Simin Mahinrad
- Division of Medical and Scientific RelationsAlzheimer's AssociationChicagoIllinoisUSA
| | - Daisy M. Acosta
- Universidad Nacional Pedro Henriquez Urena (UNPHU)Santo DomingoDominican Republic
| | - Rufus Olusola Akinyemi
- Neuroscience and Ageing Research UnitInstitute for Advanced Medical Research and TrainingCollege of MedicineUniversity of IbadanIbadanOyoNigeria
| | - Suvarna Alladi
- Department of NeurologyNational Institute of Mental Health and NeurosciencesBengaluruKarnatakaIndia
| | - Ricardo F. Allegri
- Fleni Neurological InstituteBuenos AiresArgentina
- Department of NeurosciencesUniversidad de la Costa (CUC)BarranquillaColombia
| | - Faheem Arshad
- Department of NeurologyNational Institute of Mental Health and NeurosciencesBengaluruKarnatakaIndia
| | | | | | | | | | | | - Maria C. Carrillo
- Division of Medical and Scientific RelationsAlzheimer's AssociationChicagoIllinoisUSA
| | - Kaputu‐Kalala‐Malu Celestin
- Department of NeurologyCentre Neuropsychopathologique (CNPP)Kinshasa University Teaching HospitalUniversity of KinshasaKinshasaRepublic Democratic of the Congo
| | | | - Ranil Karunamuni de Silva
- Interdisciplinary Centre for Innovation in Biotechnology and NeuroscienceFaculty of Medical SciencesUniversity of Sri JayewardenepuraNugegodaSri Lanka
- Institute for Combinatorial Advanced Research and Education (KDU‐CARE)General Sir John Kotelawala Defence UniversityRatmalanaSri Lanka
| | - Rohan de Silva
- Reta Lila Weston Institute and Department of ClinicalMovement NeuroscienceUCL Queen Square Institute of NeurologyLondonUK
| | - Mamuka Djibuti
- Partnership for Research and Action for Health (PRAH)TbilisiGeorgia
| | | | - Ratnavalli Ellajosyula
- Cognitive Neurology ClinicManipal Hospitaland Annasawmy Mudaliar HospitalBengaluruKarnatakaIndia
- Manipal Academy of Higher Education (MAHE)ManipalKarnatakaIndia
| | | | | | - Noe Garza
- Department of Neuroscience and Human GeneticsUniversity of Texas Rio Grande ValleyHarlingenTexasUSA
| | - Antoine Gbessemehlan
- Inserm U1094, IRD U270University of LimogesCHU Limoges, EpiMaCT ‐ Epidemiology of Chronic Diseases in Tropical ZoneInstitute of Epidemiology and Tropical NeurologyOmegaHealthLimogesFrance
- Inserm, Bordeaux Population Health Research CenterUniversity of BordeauxBordeauxFrance
| | - Eliza Eleni‐Zacharoula Georgiou
- Department of PsychiatryPatras University General HospitalFaculty of Medicine, School of Health SciencesUniversity of PatrasPatrasGreece
| | - Ishtar Govia
- Caribbean Institute for Health ResearchThe University of the West Indies, JamaicaWest IndiesJamaica
- Institute for Global HealthUniversity College LondonLondonUK
| | - Lea T. Grinberg
- Department of Neurology and PathologyUniversity of California San FranciscoSan FranciscoCaliforniaUSA
- Department of PathologyUniversity of Sao PauloR. da Reitoria, R. Cidade UniversitáriaSão PauloSao PauloBrazil
| | - Maëlenn Guerchet
- Inserm U1094, IRD U270University of LimogesCHU Limoges, EpiMaCT ‐ Epidemiology of Chronic Diseases in Tropical ZoneInstitute of Epidemiology and Tropical NeurologyOmegaHealthLimogesFrance
| | - Seid Ali Gugssa
- Department of NeurologySchool of MedicineAddis Ababa UniversityAddis AbabaEthiopia
| | | | - Eef Hogervorst
- Loughborough UniversityLoughboroughUK
- Respati UniversityYogyakartaIndonesia
| | | | - Agustin Ibanez
- Latin American Institute for Brain Health (BrainLat)Universidad Adolfo IbanezPeñalolénSantiagoChile
- Global Brain Health Institute (GBHI)University California San Francisco (UCSF)San FranciscoCaliforniaUSA
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
- Cognitive Neuroscience Center (CNC)Universidad de San Andrés, and National Scientific and Technical Research Council (CONICET)VictoriaProvincia de Buenos AiresArgentina
| | - Masafumi Ihara
- Department of NeurologyNational Cerebral and Cardiovascular CenterSuitaOsakaJapan
| | - Thomas Gregor Issac
- Centre for Brain ResearchIndian Institute of Science (IISc)BengaluruKarnatakaIndia
| | - Linus Jönsson
- Department of NeurobiologyCare Science and Society, section for NeurogeriatricsKarolinska Institute, SolnavägenSolnaSweden
| | - Wambui M. Karanja
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
- Brain and Mind InstituteAga Khan UniversityNairobiKenya
| | - Joseph H. Lee
- Sergievsky CenterTaub Institute for Research on Alzheimer's Disease and the Aging BrainDepartments of Neurology and EpidemiologyColumbia UniversityNew YorkNew YorkUSA
| | - Iracema Leroi
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
| | | | - Facundo Francisco Manes
- Institute of Cognitive and Translational Neuroscience (INCYT)INECO FoundationFavaloro UniversityBuenos AiresArgentina
| | - Lingani Mbakile‐Mahlanza
- Global Brain Health Institute (GBHI)University California San Francisco (UCSF)San FranciscoCaliforniaUSA
- University of BotswanaGaboroneBotswana
| | - Bruce L. Miller
- Department of NeurologyMemory and Aging CenterUniversity of California San Francisco Weill Institute for NeurosciencesSan FranciscoCaliforniaUSA
| | | | - Victoria N. Mutiso
- Africa Mental Health Research and Training FoundationNairobiKenya
- Department of PsychiatryUniversity of NairobiNairobiKenya
- World Psychiatric Association Collaborating Centre for Research and TrainingNairobiKenya
| | | | - David M. Ndetei
- Africa Mental Health Research and Training FoundationNairobiKenya
- Department of PsychiatryUniversity of NairobiNairobiKenya
- World Psychiatric Association Collaborating Centre for Research and TrainingNairobiKenya
| | - Sam Nightingale
- Neuroscience InstituteUniversity of Cape TownCape TownSouth Africa
| | - Gabriela Novotni
- University Clinic of NeurologyMedical Faculty University Ss Cyril and Methodius Institute for Alzheimer's Disease and NeuroscienceSkopjeNorth Macedonia
| | - Primrose Nyamayaro
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
- Faculty of Medicine and Health SciencesUniversity of ZimbabweHarareZimbabwe
| | - Solomon Nyame
- Kintampo Health Research CentreGhana Health ServiceHospital RoadNear Kintampo‐north Municipal HospitalKintampoGhana
| | | | | | - Maira Okada de Oliveira
- Global Brain Health Institute (GBHI)University California San Francisco (UCSF)San FranciscoCaliforniaUSA
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
- Department of Psychiatry at Massachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Cognitive Neurology and Behavioral Unit (GNCC)University of Sao PauloR. da Reitoria, R. Cidade UniversitáriaSão PauloSao PauloBrazil
| | - Njideka U. Okubadejo
- Neurology UnitDepartment of MedicineFaculty of Clinical SciencesCollege of MedicineUniversity of LagosYabaLagosNigeria
| | - Martin Orrell
- Institute of Mental HealthUniversity of NottinghamNottinghamUK
| | - Stella‐Maria Paddick
- Newcastle UniversityNewcastle upon TyneUK
- Gateshead Health NHS Foundation TrustSheriff HillTyne and WearUK
| | - Margaret A. Pericak‐Vance
- John P Hussman Institute for Human GenomicsMiller School of MedicineUniversity of MiamiCoral GablesFloridaUSA
- Dr. John T Macdonald Foundation Department of Human GeneticsUniversity of Miami Miller School of MedicineCoral GablesFloridaUSA
| | - Zvezdan Pirtosek
- Faculty of MedicineUniversity Medical Centre LjubljanaLjubljanaSlovenia
| | - Felix Claude Victor Potocnik
- Old Age Psychiatry Unit, Depth PsychiatryStellenbosch UniversityWestern Cape, Stellenbosch CentralStellenboschSouth Africa
| | - Rema Raman
- Alzheimer's Therapeutic Research InstituteUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Mie Rizig
- Department of Neuromuscular DiseasesUCL Queen Square Institute of NeurologyQueen SquareLondonUK
| | - Mónica Rosselli
- Department of PsychologyCharles E. Schmidt College of ScienceFlorida Atlantic UniversityBoca RatonFloridaUSA
- Florida Alzheimer's Disease Research CenterGainesvilleFloridaUSA
| | | | - Claudia L. Satizabal
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative DiseasesUniversity of Texas Health Sciences CenterSan AntonioTexasUSA
- Department of NeurologyBoston University School of MedicineBostonMassachusettsUSA
- The Framingham Heart StudyFraminghamMassachusettsUSA
| | - Diego Sepulveda‐Falla
- Molecular Neuropathology of Alzheimer's DiseaseInstitute of NeuropathologyUniversity Medical Center Hamburg‐EppendorfHamburgGermany
| | - Sudha Seshadri
- Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases and South Texas ADRCUT Health San AntonioSan AntonioTexasUSA
- University of Texas Health Sciences CenterSan AntonioTexasUSA
| | - Claire E. Sexton
- Division of Medical and Scientific RelationsAlzheimer's AssociationChicagoIllinoisUSA
| | - Ingmar Skoog
- Institute of Neuroscience and FysiologySahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Peter H. St George‐Hyslop
- Taub Institute for Research on Alzheimer's Disease and the Aging BrainDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
- Cambridge Institute for Medical Research and Department of Clinical NeurosciencesSchool of Clinical MedicineUniversity of CambridgeAddenbrookes Biomedical CampusTrumpingtonCambridgeUK
- Department of Medicine (Neurology)Temerty Faculty of MedicineUniversity of Torontoand University Health Network27 King's College CirTorontoOntarioCanada
| | - Claudia Kimie Suemoto
- Division of GeriatricsUniversity of Sao Paulo Medical SchoolR. da Reitoria, R. Cidade UniversitáriaSão PauloSao PauloBrazil
| | - Prekshy Thapa
- Global Brain Health Institute (GBHI)Trinity College DublinLloyd Building Trinity College DublinDublinIreland
| | - Chinedu Theresa Udeh‐Momoh
- Global Brain Health Institute (GBHI)University California San Francisco (UCSF)San FranciscoCaliforniaUSA
- FINGERS Brain Health Institutec/o Stockholms SjukhemStockholmSweden
- Department of Epidemiology and PreventionWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
- Department of NeurobiologyCare Sciences and Society (NVS)Division of Clinical GeriatricsKarolinska Institute, SolnavägenSolnaSweden
- Imarisha Centre for Brain health and AgingBrain and Mind InstituteAga Khan UniversityNairobiKenya
| | - Victor Valcour
- Memory and Aging CenterDepartment of NeurologyUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Jeffery M. Vance
- John P Hussman Institute for Human GenomicsMiller School of MedicineUniversity of MiamiCoral GablesFloridaUSA
| | - Mathew Varghese
- St. John's Medical CollegeSarjapur ‐ Marathahalli Rd, beside Bank Of Baroda, John Nagar, KoramangalaBengaluruKarnatakaIndia
| | - Jaime H. Vera
- Department of Global Health and InfectionBrighton and Sussex Medical SchoolBrightonUK
| | - Richard W. Walker
- Population Health Sciences InstituteNewcastle UniversityNewcastle upon TyneUK
| | - Henrik Zetterberg
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience and Physiologythe Sahlgrenska Academy at the University of GothenburgGöteborgSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
- Department of Neurodegenerative DiseaseUCL Institute of NeurologyQueen Square, Queen SquareLondonUK
- UK Dementia Research Institute at UCLUniversity College LondonLondonUK
- Hong Kong Center for Neurodegenerative DiseasesClear Water BayHong KongChina
- Wisconsin Alzheimer's Disease Research CenterUniversity of Wisconsin School of Medicine and Public HealthUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Yared Z. Zewde
- Department of NeurologySchool of MedicineAddis Ababa UniversityAddis AbabaEthiopia
| | - Ozama Ismail
- Division of Medical and Scientific RelationsAlzheimer's AssociationChicagoIllinoisUSA
| |
Collapse
|
2
|
Gulej R, Nyúl-Tóth Á, Csik B, Patai R, Petersen B, Negri S, Chandragiri SS, Shanmugarama S, Mukli P, Yabluchanskiy A, Conley S, Huffman D, Tarantini S, Csiszar A, Ungvari Z. Young blood-mediated cerebromicrovascular rejuvenation through heterochronic parabiosis: enhancing blood-brain barrier integrity and capillarization in the aged mouse brain. GeroScience 2024:10.1007/s11357-024-01154-8. [PMID: 38727872 DOI: 10.1007/s11357-024-01154-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/05/2024] [Indexed: 06/15/2024] Open
Abstract
Age-related cerebromicrovascular changes, including blood-brain barrier (BBB) disruption and microvascular rarefaction, play a significant role in the development of vascular cognitive impairment (VCI) and neurodegenerative diseases. Utilizing the unique model of heterochronic parabiosis, which involves surgically joining young and old animals, we investigated the influence of systemic factors on these vascular changes. Our study employed heterochronic parabiosis to explore the effects of young and aged systemic environments on cerebromicrovascular aging in mice. We evaluated microvascular density and BBB integrity in parabiotic pairs equipped with chronic cranial windows, using intravital two-photon imaging techniques. Our results indicate that short-term exposure to young systemic factors leads to both functional and structural rejuvenation of cerebral microcirculation. Notably, we observed a marked decrease in capillary density and an increase in BBB permeability to fluorescent tracers in the cortices of aged mice undergoing isochronic parabiosis (20-month-old C57BL/6 mice [A-(A)]; 6 weeks of parabiosis), compared to young isochronic parabionts (6-month-old, [Y-(Y)]). However, aged heterochronic parabionts (A-(Y)) exposed to young blood exhibited a significant increase in cortical capillary density and restoration of BBB integrity. In contrast, young mice exposed to old blood from aged parabionts (Y-(A)) rapidly developed cerebromicrovascular aging traits, evidenced by reduced capillary density and increased BBB permeability. These findings underscore the profound impact of systemic factors in regulating cerebromicrovascular aging. The rejuvenation observed in the endothelium, following exposure to young blood, suggests the existence of anti-geronic elements that counteract microvascular aging. Conversely, pro-geronic factors in aged blood appear to accelerate cerebromicrovascular aging. Further research is needed to assess whether the rejuvenating effects of young blood factors could extend to other age-related cerebromicrovascular pathologies, such as microvascular amyloid deposition and increased microvascular fragility.
Collapse
Affiliation(s)
- Rafal Gulej
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ádám Nyúl-Tóth
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Boglarka Csik
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Roland Patai
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Benjamin Petersen
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sharon Negri
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Siva Sai Chandragiri
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Santny Shanmugarama
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Peter Mukli
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Andriy Yabluchanskiy
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
| | - Shannon Conley
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Derek Huffman
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Stefano Tarantini
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
| | - Anna Csiszar
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Zoltan Ungvari
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary.
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA.
| |
Collapse
|