{"id":49667,"date":"2026-06-06T09:47:04","date_gmt":"2026-06-06T07:47:04","guid":{"rendered":"https:\/\/semaxpolska.com\/?p=49667"},"modified":"2026-06-01T09:55:56","modified_gmt":"2026-06-01T07:55:56","slug":"ka-darbojas-prieksgals","status":"publish","type":"post","link":"https:\/\/bioevidencehub.com\/lv\/jak-dziala-pinealon\/","title":{"rendered":"K\u0101 darbojas Pinealon?"},"content":{"rendered":"

Pinealon ir bioregul\u0113jo\u0161s pept\u012bds, kas eksperiment\u0101los p\u0113t\u012bjumos demonstr\u0113 potenci\u0101lu neironu aizsardz\u012bb\u0101, \u0161\u016bnu procesu regul\u0113\u0161an\u0101 un vesel\u012bg\u0101 noveco\u0161an\u0101. Sakar\u0101 ar daudzvirzienu darb\u012bbas meh\u0101nismiem arvien vair\u0101k p\u0113tnieku analiz\u0113 jaut\u0101jumu: \u201eK\u0101 darbojas Pinealon?\u201d<\/strong>, koncentr\u0113joties uz t\u0101 ietekmi uz oksidat\u012bvo stresu, g\u0113nu ekspresiju, sign\u0101lmolekulu ce\u013ciem un nervu sist\u0113mas darb\u012bbu.<\/p>\n

Oksidat\u012bv\u0101 stresa regul\u0101cija<\/h3>\n

Viens no vislab\u0101k p\u0113t\u012btajiem Pinealon darb\u012bbas meh\u0101nismiem ir t\u0101 sp\u0113ja regul\u0113t oksidat\u012bvo stresu un ierobe\u017eot reakt\u012bvo sk\u0101bek\u013ca savienojumu (ROS) uzkr\u0101\u0161anos. Oksidat\u012bvais stress rodas, kad br\u012bvo radik\u0101\u013cu veido\u0161an\u0101s p\u0101rsniedz organisma dabiskos antioksidantu meh\u0101nismus, radot boj\u0101jumus prote\u012bniem, lip\u012bdiem, DNS un mitohondrijiem. Augsts oksidat\u012bv\u0101 stresa l\u012bmenis tiek pla\u0161i uzskat\u012bts par vienu no faktoriem, kas veicina organisma noveco\u0161anos, kognit\u012bvo funkciju pasliktin\u0101\u0161anos un neirode\u0123enerat\u012bvu slim\u012bbu att\u012bst\u012bbu. Laboratorijas p\u0113t\u012bjumi par\u0101d\u012bju\u0161i, ka Pinealon var atkar\u012bb\u0101 no devas ierobe\u017eot ROS uzkr\u0101\u0161anos smadzen\u012b\u0161u graudu neironos, neitrofilos un oksidat\u012bv\u0101 stresa ietekm\u0113taj\u0101s PC12 feohromocitomas \u0161\u016bn\u0101s (1).<\/p>\n

Khavinsons un vi\u0146a kol\u0113\u0123i par\u0101d\u012bja, ka Pinealons iev\u0113rojami samazin\u0101ja oksidat\u012bvos boj\u0101jumus un uzlaboja \u0161\u016bnu izdz\u012bvo\u0161anu apst\u0101k\u013cos, kas parasti izraisa br\u012bvo radik\u0101\u013cu p\u0101rm\u0113r\u012bgu veido\u0161anos (1). Pept\u012bds ar\u012b samazin\u0101ja nekrotisko \u0161\u016bnu \u012bpatsvaru, kas nor\u0101da uz aizsarg\u0101jo\u0161u iedarb\u012bbu pret oksidat\u012bv\u0101 stresa izrais\u012btiem boj\u0101jumiem. \u0160ie rezult\u0101ti liecina, ka Pinealons var atbalst\u012bt norm\u0101lu \u0161\u016bnu funkciju uztur\u0113\u0161anu, samazinot ar oksidat\u012bvo stresu saist\u012btos boj\u0101jumus un palielinot iztur\u012bbu pret vides un vielmai\u0146as faktoriem.<\/p>\n

L\u012bdz\u012bgi nov\u0113rojumi tika ieg\u016bti ar\u012b dz\u012bvnieku p\u0113t\u012bjumos. P\u0113cn\u0101c\u0113jiem, kas tika pak\u013cauti prenat\u0101lai hiperhomocistein\u0113mijai, Pinealons pazemin\u0101ja ROS iek\u0161\u0161\u016bnu l\u012bmeni smadzen\u012bt\u0113s un palielin\u0101ja iztur\u012bbu pret oksidat\u012bviem boj\u0101jumiem, ko izrais\u012bja \u016bde\u0146ra\u017ea p\u0101rsk\u0101bes iedarb\u012bba (2). P\u0113t\u012bjuma autori secin\u0101ja, ka Pinealona neiroprotekt\u012bv\u0101s \u012bpa\u0161\u012bbas cie\u0161i saist\u012btas ar t\u0101 sp\u0113ju ierobe\u017eot oksidat\u012bvo stresu un atbalst\u012bt neironu izdz\u012bvo\u0161anu.<\/p>\n

Da\u017ei p\u0113tnieki ar\u012b nor\u0101da, ka Pinealon var ietekm\u0113t organisma endog\u0113n\u0101s antioksidantu sist\u0113mas, tostarp t\u0101du enz\u012bmu aktivit\u0101ti k\u0101 superoks\u012bddismut\u0101ze (SOD2) un glutationa peroksid\u0101ze (GPX1). Lai gan tie\u0161ie pier\u0101d\u012bjumi no kl\u012bniskajiem p\u0113t\u012bjumiem ar cilv\u0113kiem joproj\u0101m ir ierobe\u017eoti, tiek uzskat\u012bts, ka \u0161\u012bs antioksidantu \u012bpa\u0161\u012bbas var veicin\u0101t nov\u0113roto neiroprotekt\u012bvo un vesel\u012bgu noveco\u0161anos veicino\u0161o efektu (1,2).<\/p>\n

MAPK\/ERK sign\u0101lce\u013c\u0161<\/h3>\n

Pinealon var rad\u012bt savus biolo\u0123iskos efektus ar\u012b ietekm\u0113jot iek\u0161\u0161\u016bnu sign\u0101lu p\u0101rraides ce\u013cus, kas ir atbild\u012bgi par \u0161\u016bnu adapt\u0101ciju un izdz\u012bvo\u0161anu. Viens no eksperiment\u0101los p\u0113t\u012bjumos identific\u0113tajiem ce\u013ciem ir ar mitog\u0113niem aktiv\u0113to prote\u012bnkin\u0101\u017eu un \u0101rpus\u0161\u016bnu sign\u0101lu regul\u0113to kin\u0101\u017eu (MAPK\/ERK) ce\u013c\u0161, kas sp\u0113l\u0113 svar\u012bgu lomu \u0161\u016bnu aug\u0161anas, diferenci\u0101cijas, stresa reakcijas un izdz\u012bvo\u0161anas procesu regul\u0113\u0161an\u0101.<\/p>\n

Khavinsona un vi\u0146a kol\u0113\u0123u veiktie p\u0113t\u012bjumi par\u0101d\u012bja, ka Pinealona aizsarg\u0101jo\u0161\u0101 iedarb\u012bba bija saist\u012bta ar aizkav\u0113tu ERK1\/2 signaliz\u0101cijas aktiviz\u0113\u0161anos (1). ERK prote\u012bni darbojas k\u0101 \u0161\u016bnu adapt\u0101cijas galvenie regulatori, p\u0101rraida sign\u0101lus no \u0161\u016bnas virsmas uz kodolu, kur tie ietekm\u0113 g\u0113nu ekspresijas programmas. ERK1\/2 aktiviz\u0113\u0161ana parasti tiek saist\u012bta ar \u0161\u016bnu izdz\u012bvo\u0161anas uzlabo\u0161anos un liel\u0101ku iztur\u012bbu pret nelabv\u0113l\u012bgiem vides apst\u0101k\u013ciem.<\/p>\n

P\u0113t\u012bjums ar\u012b par\u0101d\u012bja, ka Pinealon ietekm\u0113ja \u0161\u016bnu cikla regul\u0101ciju, vienlaikus samazinot oksidat\u012bvo stresu un \u0161\u016bnu n\u0101vi (1). \u0160ie nov\u0113rojumi liecina, ka pept\u012bds var ne tikai pasarg\u0101t \u0161\u016bnas no boj\u0101jumiem, bet ar\u012b atbalst\u012bt adapt\u0101cijas un atjauno\u0161an\u0101s procesus, izmantojot MAPK\/ERK ce\u013cu. \u0160ie meh\u0101nismi var veicin\u0101t nov\u0113rotos efektus, kas saist\u012bti ar vesel\u012bgu noveco\u0161anu, neironu iztur\u012bbu un kognit\u012bvo funkciju uztur\u0113\u0161anu.<\/p>\n

G\u0113nu regul\u0101cija un epigen\u0113tisk\u0101 aktivit\u0101te<\/h3>\n

Viena no visrakstur\u012bg\u0101kaj\u0101m Pinealona iez\u012bm\u0113m ir t\u0101 potenci\u0101l\u0101 sp\u0113ja ietekm\u0113t g\u0113nu ekspresiju, tie\u0161i mijiedarbojoties ar DNS. Fedorejevas un kol\u0113\u0123u p\u0113t\u012bjumi par\u0101d\u012bja, ka fluoresc\u0113jo\u0161i iez\u012bm\u0113tas Pinealona molekulas var iek\u013c\u016bt dz\u012bv\u0101s \u0161\u016bn\u0101s un lokaliz\u0113ties citoplazm\u0101, kodol\u0101 un kodoli\u0146\u0101 (3). \u0160is atkl\u0101jums liecina, ka Pinealons var ietekm\u0113t \u0161\u016bnu strukt\u016bras, kas iesaist\u012btas \u0123en\u0113tiskaj\u0101 regul\u0101cij\u0101, nevis tikai uz \u0161\u016bnu virsmas eso\u0161os receptorus.<\/p>\n

Turpm\u0101k\u0101s anal\u012bzes par\u0101d\u012bja, ka Pinealons selekt\u012bvi mijiedarbojas ar noteikt\u0101m DNS nukleot\u012bdu sekvenc\u0113m un deoksiribonukleot\u012bdiem (3). Pept\u012bds uzr\u0101d\u012bja sp\u0113ju atpaz\u012bt sekvences, priorit\u0101ri saistoties ar DNS mot\u012bviem, kas ir iesaist\u012bti g\u0113nu ekspresijas regul\u0101cij\u0101. P\u0113tnieki ar\u012b nov\u0113roja, ka Pinealons sp\u0113j at\u0161\u0137irt da\u017e\u0101dus DNS metil\u0101cijas mode\u013cus, kas liecina par augsti selekt\u012bvu mijiedarb\u012bbu ar \u0123en\u0113tisko materi\u0101lu.<\/p>\n

\u0160ie rezult\u0101ti \u013c\u0101va Pinealonu klasific\u0113t k\u0101 epigen\u0113tisku bioregul\u0113jo\u0161u pept\u012bdu. T\u0101 viet\u0101, lai main\u012btu pa\u0161u DNS strukt\u016bru, Pinealons, \u0161\u0137iet, ietekm\u0113 g\u0113nu aktivit\u0101ti, kas iesaist\u012bti \u0161\u016bnu adapt\u0101cij\u0101, rezistenc\u0113 pret stresu un neironu funkcion\u0113\u0161an\u0101 (3). \u0160is meh\u0101nisms var da\u013c\u0113ji izskaidrot, k\u0101 tikai no trim aminosk\u0101b\u0113m sast\u0101vo\u0161s tripept\u012bds sp\u0113j izrais\u012bt izm\u0113r\u0101mus biolo\u0123iskos efektus daudzos organisma audos un sist\u0113m\u0101s.<\/p>\n

T\u0101 k\u0101 epigen\u0113tisk\u0101 regul\u0101cija sp\u0113l\u0113 noz\u012bm\u012bgu lomu noveco\u0161an\u0101s, neiroprotekcijas un \u0161\u016bnu funkciju uztur\u0113\u0161anas procesos, Pinealon sp\u0113ja ietekm\u0113t g\u0113nu ekspresiju joproj\u0101m ir viena no t\u0101s interesant\u0101kaj\u0101m zin\u0101tniskaj\u0101m \u012bpa\u0161\u012bb\u0101m. Tom\u0113r ir nepiecie\u0161ami turpm\u0101ki kl\u012bniskie p\u0113t\u012bjumi, lai piln\u012bb\u0101 nov\u0113rt\u0113tu \u0161o mijiedarb\u012bbu noz\u012bmi cilv\u0113ka vesel\u012bbai.<\/p>\n

Seroton\u012bna ekspresija un neiro\u0137\u012bmisk\u0101 regul\u0101cija<\/h3>\n

N\u0101kamais ierosin\u0101tais Pinealon darb\u012bbas meh\u0101nisms ir seroton\u012bna ra\u017eo\u0161anas regul\u0113\u0161ana smadze\u0146u \u0161\u016bn\u0101s. Seroton\u012bns ir neirotransmiters, kas iesaist\u012bts garast\u0101vok\u013ca, miega, atmi\u0146as, m\u0101c\u012b\u0161an\u0101s procesu, emocion\u0101l\u0101s l\u012bdzsvara un visp\u0101r\u0113j\u0101s neirolo\u0123isk\u0101s vesel\u012bbas regul\u0113\u0161an\u0101.<\/p>\n

Smadze\u0146a garozas \u0161\u016bnu kult\u016br\u0101s no novecojo\u0161\u0101m smadzen\u0113m Khavinsons un kol\u0113\u0123i par\u0101d\u012bja, ka EDR pept\u012bds palielina g\u0113na ekspresiju, kas kod\u0113 triptof\u0101na hidroksil\u0101zi \u2013 seroton\u012bna sint\u0113zes \u0101trumu ierobe\u017eojo\u0161o enz\u012bmu (4). Molekul\u0101r\u0101s dok\u0113\u0161anas anal\u012bze liecin\u0101ja, ka Pinealon var mijiedarboties ar specifisk\u0101m nukleot\u012bdu sekvenc\u0113m, kas saist\u012btas ar \u0161o g\u0113nu, potenci\u0101li palielinot seroton\u012bna ra\u017eo\u0161anu ar epim\u0113tisku meh\u0101nismu pal\u012bdz\u012bbu.<\/p>\n

P\u0113tnieki atkl\u0101ja, ka Pinealon darbojas k\u0101 seroton\u012bna ekspresijas regulators, un \u0161\u012b aktivit\u0101te var veicin\u0101t t\u0101 nov\u0113rotos neiroprotekt\u012bvos efektus un atbalst\u012bt vesel\u012bgu noveco\u0161anos (4). Palielin\u0101ta serotoniner\u0123isk\u0101 aktivit\u0101te var atbalst\u012bt smadze\u0146u norm\u0101lu noveco\u0161anos, komunik\u0101ciju starp neironiem, psihisko labsaj\u016btu un kognit\u012bv\u0101s funkcijas.<\/p>\n

\u0160is ar seroton\u012bnu saist\u012btais meh\u0101nisms ir izrais\u012bjis ar\u012b interesi par Pinealon potenci\u0101lo ietekmi uz miegu un kognit\u012bvaj\u0101m funkcij\u0101m. Lai gan lietot\u0101ju atskait\u0113s bie\u017ei tiek zi\u0146ots par uzlabotu miega kvalit\u0101ti un spilgt\u0101kiem sap\u0146iem, kontrol\u0113ti kl\u012bniskie p\u0113t\u012bjumi par \u0161iem efektiem joproj\u0101m ir ierobe\u017eoti. T\u0101d\u0113j\u0101di pa\u0161reiz\u0113jie dati apstiprina Pinealon iesaist\u012b\u0161anos ar seroton\u012bnu saist\u012btajos procesos \u0161\u016bnu l\u012bmen\u012b, ta\u010du ne\u013cauj viennoz\u012bm\u012bgi apstiprin\u0101t kl\u012bniskos efektus attiec\u012bb\u0101 uz miegu vai kognit\u012bvaj\u0101m funkcij\u0101m.<\/p>\n

Pinealons un neiroprotekcija<\/h3>\n

Neiroprotekcija ir viena no intens\u012bv\u0101k p\u0113t\u012btaj\u0101m jom\u0101m saist\u012bb\u0101 ar Pinealona darb\u012bbu. Daudzi laboratorijas p\u0113t\u012bjumi un eksperimenti ar dz\u012bvniekiem liecina, ka Pinealons var pal\u012bdz\u0113t aizsarg\u0101t neironus no oksidat\u012bv\u0101 stresa, ierobe\u017eot nervu \u0161\u016bnu boj\u0101jumus, saglab\u0101t sinaptisko strukt\u016bru integrit\u0101ti un atbalst\u012bt visp\u0101r\u0113jo smadze\u0146u darb\u012bbu (1,2,5).<\/p>\n

Viens no sp\u0113c\u012bg\u0101kajiem pier\u0101d\u012bjumiem n\u0101k no p\u0113t\u012bjumiem par prenat\u0101lo hiperhomocistein\u0113miju, st\u0101vokli, kas saist\u012bts ar paaugstin\u0101tu oksidat\u012bvo stresu un neirolo\u0123isk\u0101s att\u012bst\u012bbas trauc\u0113jumiem. Arutjunjans un kol\u0113\u0123i par\u0101d\u012bja, ka Pinealon iev\u0113rojami uzlaboja kognit\u012bvos rezult\u0101tus p\u0113cn\u0101c\u0113jiem, kas tika pak\u013cauti prenat\u0101lai hiperhomocistein\u0113mijai, vienlaic\u012bgi ierobe\u017eojot neironu boj\u0101jumus (2). No dz\u012bvniekiem, kas sa\u0146\u0113ma Pinealon, ieg\u016btie smadzen\u012b\u0161u neironi ar zem\u0101ku oksidat\u012bv\u0101 stresa l\u012bmeni, maz\u0101ku nekrotisko \u0161\u016bnu skaitu un liel\u0101ku iztur\u012bbu pret ar \u016bde\u0146ra\u017ea peroks\u012bdu izrais\u012btiem boj\u0101jumiem. \u0160ie rezult\u0101ti liecina, ka Pinealon palielina neironu izdz\u012bvo\u0161anu sare\u017e\u0123\u012btos fiziolo\u0123iskos apst\u0101k\u013cos.<\/p>\n

Papildu atbalstu sniedz p\u0113t\u012bjumi par Alcheimera slim\u012bbu. Sinaptisk\u0101s toksicit\u0101tes \u0161\u016bnu model\u012b, ko izrais\u012bja amilo\u012bds, Kraskovskaya un kol\u0113\u0123i pier\u0101d\u012bja, ka Pinealon palielin\u0101ja nobriedu\u0161o \u201es\u0113n\u012b\u0161u\u201d tipa dendr\u012btu atzaru skaitu par 71%, atjaunojot to bl\u012bvumu l\u012bdz l\u012bmenim, kas ir tuvu tam, kas nov\u0113rots vesel\u0101s kontroles \u0161\u016bn\u0101s (5). Dendr\u012btu atzari ir galven\u0101s strukt\u016bras, kas nodro\u0161ina komunik\u0101ciju starp neironiem, un tiem ir centr\u0101l\u0101 loma m\u0101c\u012b\u0161an\u0101s un atmi\u0146as procesos. \u0160o strukt\u016bru saglab\u0101\u0161an\u0101s tiek uzskat\u012bta par svar\u012bgu neiroprotekt\u012bv\u0101s aktivit\u0101tes r\u0101d\u012bt\u0101ju.<\/p>\n

Jaun\u0101kie Khavinsona un kol\u0113\u0123u veiktie p\u0113t\u012bjumi analiz\u0113ja Pinealona iedarb\u012bbu Alcheimera slim\u012bbas pe\u013cu model\u012b un par\u0101d\u012bja neiroprotekt\u012bvu iedarb\u012bbu, kas saist\u012bta ar uzlabotu neironu imunit\u0101ti un \u0161\u016bnu adapt\u012bvaj\u0101m sp\u0113j\u0101m (6). Autori Pinealonu klasific\u0113ja k\u0101 \u012bso epigentisko pept\u012bdu grupu, kas sp\u0113j regul\u0113t \u0161\u016bnu funkcijas un aizsarg\u0101t neironus no ar vecumu saist\u012btas de\u0123ener\u0101cijas.<\/p>\n

Tiek uzskat\u012bts, ka Pinealonu neiroprotekt\u012bv\u0101 iedarb\u012bba ir saist\u012bta ar vair\u0101kiem savstarp\u0113ji papildino\u0161iem meh\u0101nismiem. Tie ietver reakt\u012bvo sk\u0101bek\u013ca savienojumu veido\u0161an\u0101s ierobe\u017eo\u0161anu, oksidat\u012bvo boj\u0101jumu samazin\u0101\u0161anu, \u0161\u016bnu izdz\u012bvo\u0161anu veicino\u0161u ce\u013cu aktiviz\u0113\u0161anu, sinaptisko strukt\u016bru aizsardz\u012bbu un ar norm\u0101lu neironu darb\u012bbu saist\u012bto g\u0113nu regul\u0113\u0161anu (1\u20133,5,6). Kopum\u0101 \u0161ie pas\u0101kumi var atbalst\u012bt neiroplastiskumu, kas ir smadze\u0146u sp\u0113ja piel\u0101goties, reorganiz\u0113ties un veidot jaunus neironu savienojumus.<\/p>\n

Lai gan tie\u0161i pier\u0101d\u012bjumi, kas apliecin\u0101tu smadze\u0146u apg\u0101des ar sk\u0101bekli uzlabo\u0161anos, joproj\u0101m ir ierobe\u017eoti, da\u017ei p\u0113t\u012bjumi liecina, ka Pinealon palielina neironu iztur\u012bbu pret metaboliskajiem un oksidat\u012bvajiem stresiem, kas var netie\u0161i atbalst\u012bt pareizu smadze\u0146u darb\u012bbu un ener\u0123ijas izmanto\u0161anu \u0161\u016bnu l\u012bmen\u012b (1,2). Tom\u0113r ir nepiecie\u0161ami turpm\u0101ki kl\u012bniskie p\u0113t\u012bjumi, lai noteiktu, vai nov\u0113rotie eksperiment\u0101lie efekti rada taust\u0101mu labumu cilv\u0113kiem.<\/p>\n

Kopum\u0101 pa\u0161reiz\u0113jie p\u0113t\u012bjumi liecina, ka Pinealon ir daudzsolo\u0161s neiroprotekt\u012bvs pept\u012bds ar potenci\u0101lu noz\u012bmi kognit\u012bv\u0101s noveco\u0161an\u0101s, neirode\u0123ener\u0101cijas, neironu notur\u012bbas procesiem un smadze\u0146u vesel\u012bbas uztur\u0113\u0161an\u0101. Tom\u0113r j\u0101uzsver, ka liel\u0101k\u0101 da\u013ca pieejamo pier\u0101d\u012bjumu n\u0101k no prekliniskiem p\u0113t\u012bjumiem, un, lai apstiprin\u0101tu t\u0101 terapeitisko potenci\u0101lu, joproj\u0101m ir nepiecie\u0161ami lieli cilv\u0113ku p\u0113t\u012bjumi.<\/p>\n

Pinealons un kognit\u012bv\u0101s funkcijas<\/h3>\n

Visbie\u017e\u0101k apspriestie potenci\u0101lie ieguvumi, kas saist\u012bti ar Pinealonu, ietver t\u0101 iesp\u0113jamo ietekmi uz m\u0101c\u012b\u0161anos, atmi\u0146u, kognit\u012bvo veiktsp\u0113ju un visp\u0101r\u0113jo smadze\u0146u darb\u012bbu. Lai gan kl\u012bniskie dati no p\u0113t\u012bjumiem ar cilv\u0113kiem joproj\u0101m ir ierobe\u017eoti, vair\u0101ki p\u0113t\u012bjumi ar dz\u012bvniekiem sniedz v\u0113rt\u012bgu inform\u0101ciju par Pinealonu ietekmi uz kognit\u012bvaj\u0101m un neirolo\u0123iskaj\u0101m funkcij\u0101m (2,6).<\/p>\n

Viens no svar\u012bg\u0101kajiem p\u0113t\u012bjumiem tika veikts Arutjunjanam un vi\u0146a kol\u0113\u0123iem, izmantojot \u017eurku modeli ar prenat\u0101lu hiperhomocistein\u0113miju, st\u0101vokli, kas paz\u012bstams ar negat\u012bvu ietekmi uz kognit\u012bvo att\u012bst\u012bbu un oksidat\u012bv\u0101 stresa l\u012bme\u0146a paaugstin\u0101\u0161anos (2). P\u0113tnieki nov\u0113rt\u0113ja kognit\u012bv\u0101s funkcijas, izmantojot Morisa \u016bdens testu, kas ir pla\u0161i izmantota eksperiment\u0101la metode telpisk\u0101s m\u0101c\u012b\u0161an\u0101s un atmi\u0146as nov\u0113rt\u0113\u0161anai. Prenat\u0101lai hiperhomocistein\u0113mijai pak\u013cautie dz\u012bvnieki uzr\u0101d\u012bja slikt\u0101kus rezult\u0101tus, peld\u0113ja l\u0113n\u0101k un vajadz\u0113ja vair\u0101k laika, lai atrastu sl\u0113pto platformu, sal\u012bdzinot ar veselo kontrolgrupu.<\/p>\n

Tom\u0113r m\u0101\u0161u, kas sa\u0146\u0113ma Pinealonu, p\u0113cn\u0101c\u0113jiem tika nov\u0113rota iev\u0113rojama kognit\u012bvo sp\u0113ju uzlabo\u0161an\u0101s (2). \u0160ie dz\u012bvnieki izc\u0113l\u0101s ar lab\u0101ku telpisko orient\u0101ciju, liel\u0101ku m\u0101c\u012b\u0161an\u0101s sp\u0113ju, \u0101tr\u0101ku platformas atra\u0161anu un rezult\u0101tiem, kas bija tuv\u0101ki nov\u0113rotajiem veseliem kontroles \u012bpat\u0146iem. \u0160\u012b uzlabo\u0161an\u0101s bija v\u0113rojama, neraugoties uz past\u0101v\u012bgi paaugstin\u0101to homociste\u012bna l\u012bmeni, kas liecina, ka Pinealonu iedarb\u012bba bija saist\u012bta tie\u0161i ar neiroprotekt\u012bvu iedarb\u012bbu, nevis ar pamatmetabolisko trauc\u0113jumu korekciju.<\/p>\n

P\u0113t\u012bjuma autori secin\u0101ja, ka Pinealon uzlaboja m\u0101c\u012b\u0161an\u0101s efektivit\u0101ti un ar atmi\u0146u saist\u012bt\u0101s funkcijas, palielinot neironu iztur\u012bbu pret oksidat\u012bvo stresu un ierobe\u017eojot \u0161\u016bnu boj\u0101jumus att\u012bst\u012bbas smadzen\u0113s (2). Pept\u012bds ar\u012b samazin\u0101ja ROS uzkr\u0101\u0161anos un aizsarg\u0101ja smadzen\u012b\u0161u neironus no oksidat\u012bviem boj\u0101jumiem, nodro\u0161inot nov\u0113roto kognit\u012bvo funkciju uzlabo\u0161an\u0101s biolo\u0123isku skaidrojumu.<\/p>\n

Pier\u0101d\u012bjumi, kas ieg\u016bti no Alcheimera slim\u012bbas mode\u013ciem, papildus atbalsta Pinealon potenci\u0101lo lomu kognit\u012bvo funkciju uztur\u0113\u0161an\u0101. Hipokampa neironos nov\u0113rot\u0101 dendr\u012btisko smaili\u0146u norm\u0101las densit\u0101tes atjauno\u0161ana var veicin\u0101t sinaptisk\u0101s komunik\u0101cijas un atmi\u0146as procesu uzlabo\u0161anos, jo \u0161\u012bm strukt\u016br\u0101m ir galven\u0101 loma inform\u0101cijas apguv\u0113 un uzglab\u0101\u0161an\u0101 (5). Dendr\u012btisko smaili\u0146u saglab\u0101\u0161ana bie\u017ei vien ir saist\u012bta ar liel\u0101ku neiropalasticit\u0101ti un lab\u0101ku kognit\u012bvo funkciju notur\u012bbu pret noveco\u0161anu un neirodegener\u0101ciju.<\/p>\n

Pa\u0161reiz\u0113jie dati liecina, ka Pinealon var\u0113tu atbalst\u012bt daudzus kognit\u012bv\u0101s funkcijas aspektus, tostarp m\u0101c\u012b\u0161an\u0101s sp\u0113jas, atmi\u0146as veido\u0161anos, telpisko orient\u0101ciju, sinaptisko integrit\u0101ti un neironu adapt\u0101ciju. \u0160ie efekti, \u0161\u0137iet, izriet no antioksidat\u012bv\u0101s aktivit\u0101tes, neiroprotekcijas, neironu izdz\u012bvo\u0161anas atbalsta un smadze\u0146u darb\u012bb\u0101 iesaist\u012bto g\u0113nu regul\u0101cijas mijiedarb\u012bbas (1\u20136).<\/p>\n

Lai gan lietot\u0101ju atsauksm\u0113s bie\u017ei tiek min\u0113ti uzlabojumi koncentr\u0113\u0161an\u0101s sp\u0113j\u0101s, liel\u0101ka skaidr\u012bba pr\u0101t\u0101, lab\u0101ka miega kvalit\u0101te vai spilgt\u0101ki sap\u0146i, \u0161ie nov\u0113rojumi l\u012bdz \u0161im nav apstiprin\u0101ti lielos, kontrol\u0113tos kl\u012bniskos p\u0113t\u012bjumos. T\u0101p\u0113c secin\u0101jumiem par Pinealon ietekmi uz kognit\u012bvaj\u0101m funkcij\u0101m pa\u0161laik vajadz\u0113tu balst\u012bties galvenok\u0101rt uz eksperiment\u0101lo un prekl\u012bnisko p\u0113t\u012bjumu rezult\u0101tiem, nevis uz apstiprin\u0101tiem kl\u012bniskiem efektiem.<\/p>\n

Kopsavilkums, pieejamie p\u0113t\u012bjumi liecina, ka Pinealon piem\u012bt biolo\u0123iskas \u012bpa\u0161\u012bbas, kas var veicin\u0101t kognit\u012bv\u0101s funkcijas un smadze\u0146u vesel\u012bbu, \u012bpa\u0161i apst\u0101k\u013cos, kas saist\u012bti ar oksidat\u012bvo stresu, noveco\u0161an\u0101s procesiem vai neirolo\u0123iskiem trauc\u0113jumiem. Tom\u0113r ir nepiecie\u0161ami papildu kl\u012bniskie p\u0113t\u012bjumi ar cilv\u0113kiem, lai noteiktu, cik liel\u0101 m\u0113r\u0101 \u0161ie rezult\u0101ti p\u0101rtop re\u0101l\u0101 kognit\u012bv\u0101 labum\u0101.<\/p>\n

Atruna<\/h3>\n

\u0160aj\u0101 rakst\u0101 sniegt\u0101 inform\u0101cija ir paredz\u0113ta vien\u012bgi izgl\u012btojo\u0161iem un informat\u012bviem nol\u016bkiem un balst\u0101s uz pieejamaj\u0101m zin\u0101tniskaj\u0101m publik\u0101cij\u0101m. T\u0101 nav uzskat\u0101ma par medic\u012bnisko padomu, diagnozi vai \u0101rst\u0113\u0161anas ieteikumu. Pinealon nav apstiprin\u0101ts ASV P\u0101rtikas un z\u0101\u013cu p\u0101rvaldes (FDA) lieto\u0161anai jebk\u0101das slim\u012bbas \u0101rst\u0113\u0161anai, profilaksei vai diagnostic\u0113\u0161anai. Liel\u0101k\u0101 da\u013ca pieejamo datu ir ieg\u016bti laboratorijas p\u0113t\u012bjumos, p\u0113t\u012bjumos ar dz\u012bvniekiem un ierobe\u017eotos p\u0113t\u012bjumos ar cilv\u0113kiem, t\u0101p\u0113c ir nepiecie\u0161ami turpm\u0101ki kl\u012bniskie p\u0113t\u012bjumi, lai piln\u012bb\u0101 izprastu \u0161\u012b pept\u012bda darb\u012bbas meh\u0101nismus un nov\u0113rt\u0113tu t\u0101 dro\u0161umu un efektivit\u0101ti. P\u0113tniec\u012bbas produkti, kas satur Pinealon un kurus pied\u0101v\u0101 t\u0101di pieg\u0101d\u0101t\u0101ji k\u0101 Semax Polska, ir paredz\u0113ti tikai laboratorijas un zin\u0101tniskiem p\u0113t\u012bjumiem. Tie nav paredz\u0113ti lieto\u0161anai cilv\u0113kiem vai terapeitisk\u0101m vajadz\u012bb\u0101m.<\/p>\n

Atsauces<\/h4>\n

(1)<\/strong> Khavinson, V., Ribakova, Y., Trofimova, S. et al. (2011). Pinealons palielina \u0161\u016bnu dz\u012bvotsp\u0113ju, nom\u0101cot br\u012bvo radik\u0101\u013cu l\u012bmeni un aktiv\u0113jot proliferat\u012bvus procesus. Rejuvenation Research, 14(5), 517.\u2013523.<\/span>
\u017durn\u0101la saite: https:\/\/journals.sagepub.com\/doi\/abs\/10.1089\/rej.2011.1172<\/a><\/span><\/p>\n

(2)<\/strong> Arutjunjans, A. V., Kozina, L. S., Stvolinskis, S. L., Buligina, E. R., Ma\u0161kina, A. P., & Havi\u0146sons, V. K. (2012). Pinealons pasarg\u0101 \u017eurku p\u0113cn\u0101c\u0113jus no prenat\u0101l\u0101s hiperhomocistein\u0113mijas. International Journal of Peptides, 2012, 109757.<\/span>
DOI:10.1155\/2012\/109757 <\/a><\/span>PMC pilns teksts: https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC3342713\/<\/a><\/span><\/p>\n

(3)<\/strong> Fedoreyeva, L. I., Kireev, I. I., Khavinson, V. K., & Vanyushin, B. F. (2011). Near-surface fluorescence-labeled peptides penetrate into the nucleus in HeLa cells and specifically interact with deoxyribooligonucleotides and DNA in vitro. Biochemistry (Moscow), 76(11), 1210\u20131219.<\/span>
\u017durn\u0101la saite: https:\/\/link.springer.com\/article\/10.1134\/S0006297911110022<\/a><\/span><\/p>\n

(4)<\/strong> Khavinsons, V. K., Linkova, N. S., Tarnovska, S. I., Umnovs, R. S., Ela\u0161kina, E. V., & Durnova, A. O. (2014). \u012asi pept\u012bdi stimul\u0113 seroton\u012bna ekspresiju smadze\u0146u garozas \u0161\u016bn\u0101s. Bulletin of Experimental Biology and Medicine, 157(1), 77\u201380.<\/span>
PubMed: https:\/\/pubmed.ncbi.nlm.nih.gov\/24909721\/<\/a><\/span><\/p>\n

(5)<\/strong> Kraskovska, N. A., Kukanova, E. O., Lin\u2019kova, N. S., Popugaeva, E. A., & Khavinsons, V. K. (2017). Tripept\u012bdi atjauno neironu smaili\u0146u skaitu in vitro model\u0113tas Alcheimera slim\u012bbas apst\u0101k\u013cos. Bulletin of Experimental Biology and Medicine, 163(4), 547\u2013550.<\/span>
PubMed: https:\/\/pubmed.ncbi.nlm.nih.gov\/28853087\/<\/a><\/span><\/p>\n

(6)<\/strong> Khavinson, V., Ilina, A., Kraskovskaya, N., Linkova, N., Kolchina, N., Mironova, E., Erofeev, A., & Petukhov, M. (2021). Tripept\u012bdu - epigene\u0113tisko regulatoru neiroprotekt\u012bv\u0101 iedarb\u012bba Alcheimera slim\u012bbas peles model\u012b. Pharmaceuticals, 14(6), 515.<\/span>
\u017durn\u0101la saite: https:\/\/www.mdpi.com\/1424-8247\/14\/6\/515<\/a><\/span><\/p>","protected":false},"excerpt":{"rendered":"

Pinealons ir bioregul\u0113jo\u0161s pept\u012bds, kas eksperimentos uzr\u0101da potenci\u0101lu neironu aizsardz\u012bb\u0101, \u0161\u016bnu procesu regul\u0113\u0161an\u0101 un vesel\u012bgas noveco\u0161anas veicin\u0101\u0161an\u0101. Daudzvirzienu meh\u0101nismu d\u0113\u013c...<\/p>","protected":false},"author":7908,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[253],"tags":[],"class_list":["post-49667","post","type-post","status-publish","format-standard","hentry","category-kategoria-pinealon","beh-no-thumb"],"_links":{"self":[{"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/posts\/49667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/users\/7908"}],"replies":[{"embeddable":true,"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/comments?post=49667"}],"version-history":[{"count":0,"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/posts\/49667\/revisions"}],"wp:attachment":[{"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/media?parent=49667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/categories?post=49667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bioevidencehub.com\/lv\/wp-json\/wp\/v2\/tags?post=49667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}