CCL

Összesen 5 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM099947
035-os BibID:(WOS)000493706100001 (Scopus)85074834329
Első szerző:Csípő Tamás
Cím:Assessment of age-related decline of neurovascular coupling responses by functional near-infrared spectroscopy (fNIRS) in humans / Csipo Tamas, Mukli Peter, Lipecz Agnes, Tarantini Stefano, Bahadli Dhay, Abdulhussein Osamah, Owens Cameron, Kiss Tamas, Balasubramanian Priya, Nyúl-Tóth Ádám, Hand Rachel A., Yabluchanska Valeriya, Sorond Farzaneh A., Csiszar Anna, Ungvari Zoltan, Yabluchanskiy Andriy
Dátum:2019
ISSN:2509-2715 2509-2723
Megjegyzések:Preclinical studies provide strong evidence that age-related impairment of neurovascular coupling (NVC) plays a causal role in the pathogenesis of vascular cognitive impairment (VCI). NVC is a critical homeostatic mechanism in the brain, responsible for adjustment of local cerebral blood flow to the energetic needs of the active neuronal tissue. Recent progress in geroscience has led to the identification of critical cellular and molecular mechanisms involved in neurovascular aging, identifying these pathways as targets for intervention. In order to translate the preclinical findings to humans, there is a need to assess NVC in geriatric patients as an endpoint in clinical studies. Functional near-infrared spectroscopy (fNIRS) is a non-invasive neuroimaging technique that enables the investigation of local changes in cerebral blood flow, quantifying task-related changes in oxygenated and deoxygenated hemoglobin concentrations. In the present overview, the basic principles of fNIRS are introduced and the application of this technique to assess NVC in older adults with implications for the design of studies on the mechanistic underpinnings of VCI is discussed.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Aging
Cognitive aging
Functional near-infrared spectroscopy
Neurovascular coupling
VCI
VCID
Vascular cognitive impairment and dementia
fNIRS
Megjelenés:GeroScience. - 41 : 5 (2019), p. 495-509. -
További szerzők:Mukli Péter Lipécz Ágnes Tarantini, Stefano Bahadli, Dhay Abdulhussein, Osamah Owens, Cameron D. Kiss Tamás (1950-) (vegyész) Balasubramanian, Priya Nyúl-Tóth Ádám Hand, Rachel A. Yabluchanska, Valeriya Sorond, Farzaneh A. Csiszár Anna Ungvári Zoltán Yabluchanskiy, Andriy
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM099924
035-os BibID:(cikkazonosító)20994 (WOS)000711121600052 (Scopus)85108282219
Első szerző:Csípő Tamás
Cím:Sleep deprivation impairs cognitive performance, alters task-associated cerebral blood flow and decreases cortical neurovascular coupling-related hemodynamic responses / Csipo Tamas, Lipecz Agnes, Owens Cameron, Mukli Peter, Perry Jonathan W., Tarantini Stefano, Balasubramanian Priya, Nyúl-Tóth Ádám, Yabluchanska Valeriya, Sorond Farzaneh A., Kellawan J. Mikhail, Purebl György, Sonntag William E., Csiszar Anna, Ungvari Zoltan, Yabluchanskiy Andriy
Dátum:2021
ISSN:2045-2322
Megjegyzések:Sleep deprivation (SD) is a common condition and an important health concern. In addition to metabolic and cardiovascular risks, SD associates with decreases in cognitive performance. Neurovascular coupling (NVC, "functional hyperemia") is a critical homeostatic mechanism, which maintains adequate blood supply to the brain during periods of intensive neuronal activity. To determine whether SD alters NVC responses and cognitive performance, cognitive and hemodynamic NVC assessments were conducted prior to and 24 h post-SD in healthy young male individuals (n?=?10, 27???3 years old). Cognition was evaluated with a battery of tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB). Hemodynamic components of NVC were measured by transcranial Doppler sonography (TCD) during cognitive stimulation, dynamic retinal vessel analysis (DVA) during flicker light stimulation, and functional near infrared spectroscopy (fNIRS) during finger tapping motor task. Cognitive assessments revealed impairments in reaction time and sustained attention after 24 h of SD. Functional NIRS analysis revealed that SD significantly altered hemodynamic responses in the prefrontal cortex and somatosensory cortex during a motor task. NVC-related vascular responses measured by DVA and TCD did not change significantly. Interestingly, TCD detected decreased task-associated cerebral blood flow (CBF) in the right middle cerebral artery in sleep deprived participants. Our results demonstrate that 24 h of SD lead to impairments in cognitive performance together with altered CBF and hemodynamic components of cortical NVC responses.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Cognitive neuroscience
Neurological disorders
Translational research
Megjelenés:Scientific Reports. - 11 : 1 (2021), p. 1-13. -
További szerzők:Lipécz Ágnes Owens, Cameron D. Mukli Péter Perry, Jonathan W. Tarantini, Stefano Balasubramanian, Priya Nyúl-Tóth Ádám Yabluchanska, Valeriya Sorond, Farzaneh A. Kellawan, J. Mikhail Purebl György Sonntag, William E. Csiszár Anna Ungvári Zoltán Yabluchanskiy, Andriy
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM117772
035-os BibID:(cikkazonosító)2303516 (Scopus)85180713903 (WoS)001133874100001
Első szerző:Mukli Péter
Cím:Impaired Neurovascular Coupling and Increased Functional Connectivity in the Frontal Cortex Predict Age-Related Cognitive Dysfunction / Mukli Peter, Pinto Camila B., Owens Cameron D., Csipo Tamas, Lipecz Agnes, Szarvas Zsofia, Peterfi Anna, Langley Ana Clara da Costa Pinaffi, Hoffmeister Jordan, Racz Frigyes Samuel, Perry Jonathan W., Tarantini Stefano, Nyúl-Tóth Ádám, Sorond Farzaneh A., Yang Yuan, James Judith A., Kirkpatrick Angelia C., Prodan Calin I., Toth Peter, Galindo Juliette, Gardner Andrew W., Sonntag William E., Csiszar Anna, Ungvari Zoltan, Yabluchanskiy Andriy
Dátum:2023
ISSN:2198-3844
Megjegyzések:Impaired cerebrovascular function contributes to the genesis of age-related cognitive decline. In this study, the hypothesis is tested that impairments in neurovascular coupling (NVC) responses and brain network function predict cognitive dysfunction in older adults. Cerebromicrovascular and working memory function of healthy young (n = 21, 33.2?7.0 years) and aged (n = 30, 75.9?6.9 years) participants are assessed. To determine NVC responses and functional connectivity (FC) during a working memory (n-back) paradigm, oxy- and deoxyhemoglobin concentration changes from the frontal cortex using functional near-infrared spectroscopy are recorded. NVC responses are significantly impaired during the 2-back task in aged participants, while the frontal networks are characterized by higher local and global connection strength, and dynamic FC (p < 0.05). Both impaired NVC and increased FC correlate with age-related decline in accuracy during the 2-back task. These findings suggest that task-related brain states in older adults require stronger functional connections to compensate for the attenuated NVC responses associated with working memory load. ? 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
aging
cognitive decline
functional connectivity
functional near-infrared spectroscopy
neurovascular coupling
Megjelenés:Advanced Science. - 2023 (2023), p. 1-18. -
További szerzők:Pinto, Camila B. Owens, Cameron D. Csípő Tamás (1990-) Lipécz Ágnes Szarvas Zsófia Péterfi Anna Langley, Ana Clara da Costa Pinaffi Hoffmeister, Jordan Rácz Frigyes Sámuel Perry, Jonathan W. Tarantini, Stefano Nyúl-Tóth Ádám Sorond, Farzaneh A. Yang, Yuan James, Judith A. Kirkpatrick, Angelia C. Prodan, Calin I. Tóth Péter Galindo, Juliette Gardner, Andrew W. Sonntag, William E. Csiszár Anna Ungvári Zoltán Yabluchanskiy, Andriy
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM099921
035-os BibID:(cikkazonosító)e02135
Első szerző:Mukli Péter
Cím:Sleep deprivation alters task-related changes in functional connectivity of the frontal cortex : a near-infrared spectroscopy study / Mukli Peter, Csipo Tamas, Lipecz Agnes, Stylianou Orestis, Racz Frigyes Samuel, Owens Cameron D., Perry Jonathan W., Tarantini Stefano, Sorond Farzaneh A., Kellawan Jeremy M., Purebl György, Yang Yuan, Sonntag William E., Csiszar Anna, Ungvari Zoltan I., Yabluchanskiy Andriy
Dátum:2021
ISSN:2162-3279
Megjegyzések:Sleep deprivation (SD) is known to be associated with decreased cognitive performance; however, the underlying mechanisms are poorly understood. As interactions between distinct brain regions depend on mental state, functional brain networks established by these connections typically show a reorganization during task. Hence, analysis of functional connectivity (FC) could reveal the task-related change in the examined frontal brain networks. Our objective was to assess the impact of SD on static FC in the prefrontal and motor cortices and find whether changes in FC correlate with changes in neuropsychological scores. Healthy young male individuals (n = 10, 27.6 ? 3.7 years of age) participated in the study. A battery of tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB) and 48 channel functional near-infrared spectroscopy (fNIRS) measurements were performed before and after 24 hr of SD. Network metrics were obtained by graph theoretical analysis using the fNIRS records in resting state and during finger-tapping sessions. During task, SD resulted in a significantly smaller decrease in the number and strength of functional connections (characterizing FC) in the frontal cortex. Changes in the global connection strengths correlated with decreased performance in the paired association learning test. These results indicate a global impact of SD on functional brain networks in the frontal lobes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
functional connectivity
near-infrared
neuropsychological tests
sleep deprivation
spectroscopy
Megjelenés:Brain and Behavior. - 11 : 8 (2021), p. 1-14. -
További szerzők:Csípő Tamás (1990-) Lipécz Ágnes Stylianou, Orestis Rácz Frigyes Sámuel Owens, Cameron D. Perry, Jonathan W. Tarantini, Stefano Sorond, Farzaneh A. Kellawan, Jeremy M. Purebl György Yang, Yuan Sonntag, William E. Csiszár Anna Ungvári Zoltán Yabluchanskiy, Andriy
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM117425
035-os BibID:(Scopus)85179338215 (WoS)001115572500001
Első szerző:Ungvári Zoltán
Cím:The Semmelweis Study : a longitudinal occupational cohort study within the framework of the Semmelweis Caring University Model Program for supporting healthy aging / Zoltan Ungvari, Adam G. Tabák, Roza Adany, György Purebl, Csilla Kaposvári, Vince Fazekas-Pongor, Tamás Csípő, Zsófa Szarvas, Krisztián Horváth, Peter Mukli, Piroska Balog, Robert Bodizs, Peter Ujma, Adrienne Stauder, Daniel W. Belsky, Illés Kovács, Andriy Yabluchanskiy, Andrea B. Maier, Mariann Moizs, Piroska Östlin, Yongjie Yon, Péter Varga, Zoltán Vokó, Magor Papp, István Takács, Barna Vásárhelyi, Péter Torzsa, Péter Ferdinandy, Anna Csiszar, Zoltán Benyó, Attila J. Szabó, Gabriella Dörnyei, Mika Kivimäki, Miklos Kellermayer, Bela Merkely
Dátum:2024
ISSN:2509-2715 2509-2723
Megjegyzések:The Semmelweis Study is a prospective occupational cohort study that seeks to enroll all employees of Semmelweis University (Budapest, Hungary) aged 25 years and older, with a population of 8866 people, 70.5% of whom are women. The study builds on the successful experiences of the Whitehall II study and aims to investigate the complex relationships between lifestyle, environmental, and occupational risk factors, and the development and progression of chronic age-associated diseases. An important goal of the Semmelweis Study is to identify groups of people who are aging unsuccessfully and therefore have an increased risk of developing age-associated diseases. To achieve this, the study takes a multidisciplinary approach, collecting economic, social, psychological, cognitive, health, and biological data. The Semmelweis Study comprises a baseline data collection with open healthcare data linkage, followed by repeated data collection waves every 5 years. Data are collected through computer-assisted self-completed questionnaires, followed by a physical health examination, physiological measurements, and the assessment of biomarkers. This article provides a comprehensive overview of the Semmelweis Study, including its origin, context, objectives, design, relevance, and expected contributions.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Age-associated diseases
Biological age
Central Europe
Epidemiology
Health Promoting University
Healthy aging
Workplace cohort
Megjelenés:GeroScience. - 46 : 1 (2024), p. 191-218. -
További szerzők:Tabák Ádám G. Ádány Róza (1952-) (megelőző orvostan és népegészségtan szakorvos) Purebl György Kaposvári Csilla Fazekas-Pongor Vince Csípő Tamás (1990-) Szarvas Zsófia Horváth Krisztián Mukli Péter Balog Róbert Bódizs Róbert Ujma Péter Stauder Adrienne Belsky, Daniel W. Kovács Illés Yabluchanskiy, Andriy Maier, Andrea B. Moizs Marianna (1964-) (orvos) Östlin Piroska Yon, Yongjie Varga Péter Vokó Zoltán (1968-) (epidemiológus) Papp Magor Csongor (1978-) (háziorvostan szakorvos) Takács István Vásárhelyi Barna Torzsa Péter Ferdinándy Péter Csiszár Anna Benyó Zoltán Szabó Attila (gyermekgyógyász Budapest) Dörnyei Gabriella Kivimäki, Mika Kellermayer Miklós Merkely Béla (1965-) (orvos)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1 
Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.