david attwell - pericytes in neurovascular coupling in health and disease

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    Djvkd Jttwecc

    Depjrtie`t al @eurasnke`ne, Rfyskacagy & Rfjrijnacagy

    U`kverskty Naccege Ca`da`

    _egucjtka` al orjk` e`ergy suppcy=

    wfere daes tfe jntka` oegk`.j`d e`d1

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    Avervkew

    Canus al na`trac al orjk` e`ergy suppcy -jrterkaces versus njpkccjrkes

    Rerknytes nj` dkcjte njpkccjrkes

    Faw ljst nj` tfks warh1 _ecevj`ne ta OACD lI_K

    Ellent al ksnfjeikj a` njpkccjrkes _ace al perknytes k` cass al na`trac al orjk`

    e`ergy suppcy k` pjtfacagy

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    ocaadlcaw

    njpkccjry

    siaatf

    iusnce

    e`datf

    eckjcneccs perknytes

    `eura`s

    _egucjtka` al orjk` e`ergy suppcy oy

    jrterkace siaatf iusnce vs perknytes

    Nfjrces Ijrke Oe`mjik` _auget

    (:6?4-:;24)

    :67>

    [ejr

    :;42 :;52 :;22

    >52

    RuoIed= perknyte

    RuoIed=

    perknyte k` tktce

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    ocaadlcaw

    njpkccjry

    siaatf

    iusnce

    e`datf

    eckjcneccs

    :2 i

    ^I

    :2 i

    5 i

    s

    p5 i

    s p

    perknytes

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    _egucjtka` al njpkccjry dkjieter oy `arjdre`jck`e j`d gcutjijte

    superlused a`ta nereoeccjr scknes

    2

    ?2

    42

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    ojshet

    steccjte

    grj`uce Gacgk

    Rurhk`me

    ocaad vessecs

    k`put iassy lkores

    autput

    k`put

    nckiok`g lkore

    FoA?Fo

    A?

    LCAW

    _ecevj`ne ta OACD lI_K

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    ojshet

    steccjte

    grj`uce Gacgk

    Rurhk`me

    ocaad vessecs

    k`put iassy lkores

    autput

    k`put

    nckiok`g lkore

    FoA?Fo

    A?

    LCAW

    _ecevj`ne ta OACD lI_K

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    Deaxyfjeiagcaok` denrejses

    ijg`etkn resa`j`ne skg`jcs

    Deaxy-Fo ks pjrjijg`etkn

    Kts ijg`etkn lkecd ijhes tfe tatjc ijg`etkn lkecd cess faiage`aus

    Tfjt depfjses tfe prenesska` al prata`s k` tfe exter`jc lkecd (T?*denrejsed)

    Tfjt k` tur` denrejses tfe skg`jc detented

    ^a iare deaxy-Fo iej`s cess skg`jc

    OUT..

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    ojshet

    steccjte

    grj`uce Gacgk

    Rurhk`me

    ocaad vessecs

    k`put iassy lkores

    autput

    k`put

    nckiok`g lkore

    FoA?Fo

    A?

    LCAW

    gcutjijte

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    ojshet

    steccjte

    grj`uce Gacgk

    Rurhk`me

    ocaad vessecs

    k`put iassy lkores

    autput

    k`put

    nckiok`g lkore

    FoA?Fo

    A?

    LCAW

    \AC

    gcutjijte

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    ojshet

    steccjte

    grj`uce Gacgk

    Rurhk`me

    ocaad vessecs

    k`put iassy lkores

    autput

    k`put

    nckiok`g lkore

    FoA?Fo

    A?

    LCAW

    \AC

    gcutjijte

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    Deaxy-Fo ks pjrjijg`etkn

    Kts ijg`etkn lkecd ijhes tfe tatjc ijg`etkn lkecd cess faiage`aus

    Tfjt depfjses tfe prenesska` al prata`s k` tfe exter`jc lkecd (T?*denrejsed)

    Tfjt k` tur` denrejses tfe skg`jc detented

    ^a iare deaxy-Fo iej`s cess skg`jc

    OUT..`eura`s k nrejse ocaad lcaw, j`d denrejse Xdeaxy-FoY sa

    tfe lI_K skg`jc k`nrejses

    Deaxyfjeiagcaok` denrejses

    ijg`etkn resa`j`ne skg`jcs

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    OACD kijgk`g

    Fjrkrk et jc. (?22?) ^nke`ne ?;7, 422

    Jiygdjcj respa`se ta lejr stkiucus

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    \jsajntkve iedkjtars wkcc rejnf perknytes lkrst

    RKJC U_LJNE

    siaatf

    iusnce

    2tf arder

    pe`etrjtk`g

    jrterkace:st arder

    njpkccjry

    ?`d ardernjpkccjry

    >rd arder

    njpkccjry

    perknyte

    :. Jntkve

    neccs

    ?. Dkcjtars recejsed oy jntkve

    `eura`s j`d jstranytes rejnf

    perknytes oelare jrterkaces

    `eura`

    jstranyte

    Hey

    >. Rerknyte dkcjtka` ijy

    sprejd ta jrterkace

    J

    OJJ

    @A

    RgE?

    ?2-FETE

    ER4_

    @A ocanhs praduntka` al na`strkntar ?2-FETE

    dkcjtka`

    na`strkntka`

    A? Hi:2I

    A? Hi>52I

    I

    GCU

    @eura`s jre ~6.4 iknra`s lrai njpkccjrkes out 72 iknra`s lrai jrterkaces

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    Ieiorj`e nurre`t nfj`ges evahed k` perknytes oy gcutjijte j`d `eura`jc JRs

    Faw da vjsadkcjtary iesse`gers jllent perknytes1

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    @eura`jc jntkvkty evahes njpkccjry dkcjtka`

    (stkiucjtka` al nereoeccjr pjrjccec lkores)

    @eura`jc jntkvkty dkcjtes njpkccjrkes k` orjk` scknes wfjt joaut k` vkva1

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    Wfknf vessecs respa`d lkrst k` vkva1

    Naccjoarjtka` wktf Oadkc Gesscek` j`d Ijrtk` Cjurktze`, Nape`fjge`

    ocaadlcaw

    njpkccjry

    siaatfiusnce

    e`datfeckjcneccs perknytes

    `eura`s

    ? pfata` kijgk`g k` vkva

    :st arder

    njpkccjry

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    Njpkccjrkes dkcjte k` vkva

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    Njpkccjrkes dkcjte oelare jrterkaces k` vkva

    (wfksher pjd stkiucjtka`)

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    Njpkccjrkes dkcjte oelare jrterkaces k` vkva

    (wfksher pjd stkiucjtka`)

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    Njpkccjrkes dkcjte oelare jrterkaces k` vkva

    (wfksher pjd stkiucjtka`)

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    Njpkccjrkes dkcjte oelare jrterkaces k` vkva

    (wfksher pjd stkiucjtka`)

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    Tfere jre iare, j`d cjrger, respa`ses `ejr perknytes

    ^ l d t

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    ^uiijry al djtj

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    Faw kipartj`t jre njpkccjry dkcjtka`s1

    Njcnucjted reskstj`ne al

    (k) pkj - cjyer 4 jrterkace

    (kk) cjyer 4 jrterkace ta ve`uce

    ?22ui jwjy

    (kkk) ve`uce pkj

    _jtkas were 2.:=2.4=2.?

    sa njpkccjrkes fjve iast

    reskstj`ne

    K`sertk`g aur iejsureddkcjtka`s suggests njpkccjrkes

    ge`erjte 64% al tfe

    k`nrejse al NOL (wfetfer ar

    `at tfey recjx jntkvecy)

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    Njpkccjrkes na`trkoute ta NOL k`nrejses k` twa wjys

    RKJC ^U_LJNE

    siaatfiusnce

    2tf arder

    pe`etrjtk`g

    jrterkace:st arder

    njpkccjry

    ?`d ardernjpkccjry

    >rd arder

    njpkccjry

    perknyte

    :. Jntkveneccs

    ?. Dkcjtars recejsed oy jntkve

    `eura`s j`d jstranytes rejnfperknytes oelare jrterkaces

    `eura`

    jstranyte

    Hey

    >. Rerknyte dkcjtka` ijy

    sprejd ta jrterkace

    J

    (:) Njpkccjrkes dkcjte lkrst j`d perknyte fyperpacjrkzjtka` ijy sprejd ta jrterkaces

    (?) Tfe dkcjtka` evahed k` njpkccjrkes daik`jtes tfe denrejse al reskstj`ne ta lcaw k`

    tfe nartex

    A

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    Avervkew

    Canus al na`trac al orjk` e`ergy suppcy -jrterkaces versus njpkccjrkes - oatf

    Rerknytes nj` dkcjte njpkccjrkes - vkj RgE?

    Faw ljst nj` tfks warh1 - : sen _ecevj`ne ta OACD lI_K - perknytes k`ktkjte

    tfe OACD skg`jc

    Ellent al ksnfjeikj a` njpkccjrkes

    _ace al perknytes k` cass al na`trac al orjk`

    e`ergy suppcy k` pjtfacagy

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    Jies et jc. (:;7

    Laccawk`g ksnfjeikj, ocaad

    lcaw retur`s ta jrterkaces out

    saie njpkccjrkes ljkc ta lkcc a`

    reperluska`

    Wfkte jrejs relcent jrejs wktf `a perluska` laccawk`g

    5 ik`s ksnfjeikj

    Njpkccjrkes oenaie anncuded jlter ksnfjeikj

    Na`

    Ksnf

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    Tfe perknyte respa`se ta ksnfjeikj

    Dkjieter

    (%)

    Tkie (s)

    2

    :22

    52

    J`axkn

    Depacjrksjtka`

    ?22 4222 ?s

    j o

    Reppkjtt, Fawjrtf, Iaoos & Jttwecc (?22, 722

    >@j+

    ?H+JTR

    >@j+

    Nj?+

    Nj?+

    Nj?+

    iyalkcjie`ts

    praness jrau`d

    njpkccjry

    na`trac ksnfjeikj

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    Tfe NOL respa`se ta ksnfjeikj

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    Tfe NOL respa`se ta ksnfjeikj

    Cellcer et jc., :;6;8 @ecsa` et jc., :;;?8 Fjunh et jc., ?224

    -?2 2 ?2 42

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    @j+

    ?H+JTR

    >@j+

    Nj?+

    Nj?+

    Nj?+

    iyalkcjie`ts

    na`strknted

    praness rau`d

    njpkccjry

    dejtf

    Rerknytes ijy dke k` rkgar, pradunk`g j ca`g cjstk`g na`strkntka`Wfy da tfey dke1

    Na`trac Ksnfjeikj2

    ?2

    42

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    reperluska` tkie@IDJ_ ocanhers= 52 I JR5 + IH62: + 7-NH

    JIRJ/HJ _ ocanhers= ?5 I @OZV

    : I TTV

    Gcutjijte recejse j`d reperluska` praiate perknyte dejtf

    @knacj Fjikcta`, Njtferk`e Fjcc & Ncjre _ey`ecc, u`puocksfed

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    Gcutjijte recejse j`d reperluska` praiate perknyte dejtf

    @knacj Fjikcta`, Njtferk`e Fjcc & Ncjre _ey`ecc, u`puocksfed

    INJA evahes perknyte dejtf k` vkva

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    INJA evahes perknyte dejtf k` vkva

    Rerknytes dke jt j tkie wfe` e`datfeckjc neccs jre u`jllented

    Naccjoarjtka` wktf Orjd ^utfercj`d j`d Jcjstjkr Ounfj`, k` Axlard

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    Tfe NOL respa`se ta ksnfjeikj

    Cellcer et jc., :;6;8 @ecsa` et jc., :;;?8 Fjunh et jc., ?224

    -?2 2 ?2 42

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    Avervkew Canus al na`trac al orjk` e`ergy suppcy -

    jrterkaces versus njpkccjrkes - oatf Rerknytes nj` dkcjte njpkccjrkes - vkj RgE?

    Faw ljst nj` tfks warh1 - : sen

    _ecevj`ne ta OACD lI_K - perknytes k`ktkjte tfeOACD skg`jc

    Ellent al ksnfjeikj a` njpkccjrkes - perknytesna`strknt j`d dke

    _ace al perknytes k` cass al na`trac al orjk`

    e`ergy suppcy k` pjtfacagy - nrunkjc, + lar OOO

    Naccjoarjtars

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    Naccjoarjtars

    Ncjkre Reppkjtt Ncjre Fawjrtf Reter Iaoos

    Njtferk`e Fjcc Ncjre _ey`ecc @khk Fjikcta` J`usfj Iksfrj Lergus ALjrrecc

    Oadkc Gesscek` Ijrtk` Cjurktze` Orjd ^utfercj`d Jcjstjkr Ounfj`

    CA@DA@

    NARE@FJGE@

    AVLA_D

    _egucjtka` al orjk` e`ergy suppcy=

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    Jt njpkccjrkes!

    _egucjtka` al orjk` e`ergy suppcy=

    wfere daes tfe jntka` oegk`.j`d e`d1