<?xml version="1.0"?><rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:wgs84_pos="http://www.w3.org/2003/01/geo/wgs84_pos" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdaGr2="http://rdvocab.info/ElementsGr2" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:dcterms="http://purl.org/dc/terms/"><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:doc-KKX3LTGR/36b5b773-5285-4fbe-9ec0-ba07d5c3f701/HTML"><dcterms:extent>46 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:doc-KKX3LTGR/928dc2f3-6046-4ba0-9ca9-44fbc03e58d2/PDF"><dcterms:extent>141 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:doc-KKX3LTGR/5a81473d-8239-4ef0-b8ef-251878808fdc/TEXT"><dcterms:extent>30 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="1929-2026"><edm:begin xml:lang="en">1929</edm:begin><edm:end xml:lang="en">2026</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:doc-KKX3LTGR"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/urn:nbn:si:spr-a30mfzkp" /><dcterms:issued>2008</dcterms:issued><dc:creator>Zaletel, Marjan</dc:creator><dc:format xml:lang="sl">številka:2</dc:format><dc:format xml:lang="sl">6 strani</dc:format><dc:format xml:lang="sl">letnik:77</dc:format><dc:format xml:lang="sl">str. II-65-II-70</dc:format><dc:identifier>ISSN:1318-0347</dc:identifier><dc:identifier>COBISSID:24289753</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-KKX3LTGR</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="sl">Slovensko zdravniško društvo</dc:publisher><dcterms:isPartOf xml:lang="sl">Zdravniški vestnik</dcterms:isPartOf><dc:subject xml:lang="en">Aging</dc:subject><dc:subject xml:lang="en">Blood Flow Velocity</dc:subject><dc:subject xml:lang="en">Cerebrovascular Circulation</dc:subject><dc:subject xml:lang="sl">Cerebrovaskularni obtok</dc:subject><dc:subject xml:lang="en">diagnostika</dc:subject><dc:subject xml:lang="sl">Evocirani potenciali vidni</dc:subject><dc:subject xml:lang="en">Evoked Potentials, Visual</dc:subject><dc:subject xml:lang="sl">fiziologija</dc:subject><dc:subject xml:lang="sl">Krvni pretok, hitrost</dc:subject><dc:subject xml:lang="en">Migraine</dc:subject><dc:subject xml:lang="sl">Migrena</dc:subject><dc:subject xml:lang="en">neurology</dc:subject><dc:subject xml:lang="sl">nevrologija</dc:subject><dc:subject xml:lang="sl">Staranje</dc:subject><dc:subject xml:lang="sl">Ultrasonografija dopplerska, transkranialna</dc:subject><dc:subject xml:lang="en">Ultrasonography, Doppler, Transcranial</dc:subject><dcterms:temporal rdf:resource="1929-2026" /><dc:title xml:lang="sl">Neurovascular coupling during ageing and in migraneurs| Živčnožilna sklopitev pri starejših in bolnikih z migreno|</dc:title><dc:description xml:lang="sl">A noninvasive assessment of neurovascular coupling using visually evoked cerebral blood flow velocity responses (VEFR) and visual evoked potentials (VEP), during normal ageing and in migraneurs, would be of great importance for interpretation of functional neuroimaging methods. According to the recentfindings neurovascular coupling could be altered in older subjects and in migraneurs. The records were made from a group of healthy younger (37.5 9.4years; 20 subjects) and older subjects (69.5 5.9 years; 20 subjects) as well as from patients with migraine (36.6 10.4 years) interictally. The stimulus was a black-and-white checkerboard with visual contrasts of 1%, 10% and 100%. The VEFR were measured in the posterior cerebral artery using transcranial Doppler (TCD), and the VEP were recoded from occipital leads. To test the relationship between the VEFR, the VEP and the visual contrast, a linear regression analysis was performed. A significant increase of the VEFR and the VEP to graded visual contrasts (p &lt; 0.01) was found both in the younger and older subjects. The linear regression showed a significant positive association between the VEP in the VEFR (r = 0.66, p &lt; 0.01) of the younger and older subjects (r = 0.74, p &lt; 0.01). The regression coefficient ofthe younger subjects was significantly higher (b = 0.54; SE = 0.07) than that of the older ones (b = 0.40; SE = 0.05) (p &lt; 0.01). Also, we found an increase of VEFR and VEP within group of migraneurs (p &lt; 0.01). VEFR were significantly higher in migraneurs (p &lt; 0.01) compared to controls, while VEP did not significantly differ between the groups (p &gt; 0.05). The regression showed a significant association between VEP and VEFR migraneurs (r = 0.63, p &lt; 0.01). The regression coefficient of migraneurs (b = 0.88, SE = 0.08) was significantly higher than of healthy subjects (b = 0.55, SE = 0.07) (p = 0.04). (Abstract truncated at 2000 characters)</dc:description><dc:description xml:lang="sl">Neinvazivna analiza živčnožilne sklopitve z merjenjem evociranih možganskih odgovorov krvnega pretoka (VEOP) in vidnih evociranih potencialov (VEP) bi lahko bila pomembna zaradi razlage rezultatov funkcijskih slikovnih metod v zvezi s staranjem in pri bolnikih z migreno. V skladu s dosedanjimi spoznanji je živčnožilna sklopitev lahko spremenjena pri starejših in bolnikih z migreno. V raziskavi je sodelovalo20 zdravih mlajših (37,5 9,4 leta) in 20 starejših preiskovancev (69,5 5,9 leta) ter 30 bolnikov z migreno (36,6 10,4 leta). Za svetlobni dražljaj smo uporabili šahovnico, na kateri smo spreminjali vidni kontrast. Uporabili smo 1-, 10- in 100-odstotni vidni kontrast. VEOP smo merili v zadnji možganski arteriji s transkranialnim Dopplerjem (TCD). VEP smo snemali v zatiljnih odvodih. VEOP in VEP so se pomembno povečali po draženju z različnim kontrastom (p &lt; 0,01). Linearna regresija je pokazala statistično pomembno povezanost med VEOP in VEP pri starejših (r = 0,66, p &lt; 0,01) in mlajših preiskovancih (r = 0,74, p &lt; 0,01). Regresijski koeficient je bil pomembno večji pri mlajših (b = 0,54; SE = 0,07)kot pri starejših preiskovancih (b = 0,40; SE = 0,05) (p &lt; 0,01). Ugotovili smo tudi pomembno povečanje VEOP in VEP v skupini bolnikov z migreno(p &lt; 0,01). VEOP so bili pri bolnikih z migreno pomembno večji (p &lt; 0,01), VEP pa se med skupinama niso pomembno razlikovali (p &gt; 0,05). Regresijaje pokazala pomembno povezanost med VEP in VEOP pri bolnikih z migreno (r = 0,63, p &lt; 0,01). Regresijski koeficient je bil pri bolnikih z migreno (b = 0,88, SE = 0,08) pomembno večji kot kot pri zdravih preiskovancih(b = 0,55, SE = 0,07) (p = 0,04). Zaključili smo, da sočasno snemanje VEOP in VEP pri spreminjajočem se vidnem kontrastu kaže na zmanjšano živčnožilno sklopitev pri starejših bolnikih in povečano pri bolnikih z migreno v času brez migrenskega napada</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:doc-KKX3LTGR"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:doc-KKX3LTGR" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:doc-KKX3LTGR/928dc2f3-6046-4ba0-9ca9-44fbc03e58d2/PDF" /><edm:rights rdf:resource="http://creativecommons.org/licenses/by-nc/4.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Slovensko zdravniško društvo</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:doc-KKX3LTGR/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:doc-KKX3LTGR" /></ore:Aggregation></rdf:RDF>