Resveratrol dlya sna i stressa: chto govorit nauka
Resveratrol - odin iz naibolee izuchennykh polifenolov v nutritivnoy biokhimii, privlekayushchiy vnimaniye prezhde vsego za yegor potentsialnyye roli v kardiovaskularnoy zashchite, signalizatsii dolgoletiya cherez aktivatsiyu SIRT1, i protivovopalitelnyye effekty. Yego relevantnost dlya sna i stressa - bolee pozdnyaya oblast issledovaniy, chastichno obuslovlennaya razvi-vayushchimisya dokazatelstvami togo, chto put SIRT1 i neyrovospaleniye oba uchastv-uyut v regulatsii sna i stressovoy reaktsii. Eto rukovodstvo rassmatrivayet, chto tekushchiye dokazatelstva deystvitelno podderzhivayut.
Mekhanizm: SIRT1, neyrozashchita i kortizol
Naibolee ustanovlennyy molekulyarnyy mekhanizm resveratrola - aktivatsiya SIRT1 (sirtuina 1), NAD+-zavisimoy dezatsetilazy, uchast-vuyushchey v kletochnoy stressoustoychivosti, regulyatsii tsirkadiannnogo ritma i mitokhodrialnom biogeneze. Svyaz so snom i stressom deystvuyet cherez neskol-ko putey:
Podderzhka tsirkadiannogo ritma: SIRT1 yavlyayetsya korovym komponentom molekulyarnykh tsirkadiannykh chasov, vzaimodeystvuya s kompleksom CLOCK-BMAL1. Aktivatsiya SIRT1 resveratrolom byla predlozhena dlya podderzhki tsirkadianno-y robustnosti, potentsialnyno pri-nося polzu regulyarnosti sna. Odna-ko eto bylo prodemon-strirovano preimushchestvenno na zhivotnykh modelyakh; klinicheskiye dannyye cheloveka ogranicheny.
Protivovopalitelnyye i neyrozashchitnye effekty: Khronicheskiy psikhologicheskiy stress uvelichivayet neyrovospaleniye, i narushennyy son yavlyayetsya kak sledstviyem, tak i amplifikatorom etogo protsessa. Resveratrol prodemonstriroval protivovopalitelnyye svoystva cherez ingibiro-vaniye puti NF-kB v neskolk-ikh in vitro i zhivotnykh issledovaniyakh. Privodit li peroralnoe dobavleniye pri dostizhimykh dozakh k znachimym protivovopalitelnym effektam tsentralnoy nervnoy sistemy u lyudey - eto klyuchevoy klinicheskiy vopros.
Modulyatsiya kortizola: RCT 2014 goda u izlishne polnykh postmenopauza-lnykh zhenshchin obnaruzhilo, chto dobavleniye resveratrola bylo svyazano so snizhen-nymi reaktsiyami slyun-nogo kortizola na ostruyu stressovuyu zadachu po sravneniyu s platsebo (Evans et al., 2017). Eto podlinno interesnoye otkrytiye, no populyatsiya byla spetsificheskoy i effekt nuzhdayet-sya v replikatsii na bolee shirokikh vyborak-akh.
Put melatonina: Resveratrol nayvtsya estestvenne v vinogradye vmeste s predshestvenni-kami melatonina, i ekstrakty shefki vinograda, soderzhashchiye resveratrol, byli svyazany s podderzhkoy shitovidnoy zhelezy v zhivotnykh issledovaniyakh. Vliyayet li resveratrol sam po sebe na vyrabotku melatonina u lyudey, ne ustanovleno.
Chto pokazyvayut klinicheskiye dokazatelstva
Chelovecheskiye RCT spetsificheski dlya resveratrola i pokazateley sna skudny. Bolshinstvo klinicheskikh issledovaniy bylo razrabotano dlya testiro-vaniya kardiovaskularnykh, metabolichesk-ikh ili kognitivnykh konechnykh tochek.
12-nedelnoe dvoynoye slepoe RCT u pozhilykh vzroslykh s legkim kogni-tivnym narusheniyem obnaruzhilo, chto ezhednevnoye dobavleniye resveratrola bylo svyazano s uluchshennoy verbalnoy pamyatyyu i snizhen-nymi pro-vospalitelnymi tsitokinom po sravneniyu s platsebo (Witte et al., 2014). Kachestvo sna bylo vtorichnoy konechnoy tochkoy i pokazalo tendentsiyu k uluchsheniyu, no issledovaniye ne imelo moschnosti dlya obnaruzheniya effektov sna.
Dlya stressa spetsificheski otkrytiye o snizhenii kortizola (Evans et al., 2017) ostayotsya odnim iz nemnogikh chelovecheskikh issledovaniy s pryamoy kon-echnoy tochkoy biomarkera stressa. Razmer effekta byl umerennyy i issledovaniye ispolzovalo 75 mg trans-resveratrola dvazhdy v den.
Biodostupnost - povtoryayushchayasya problema v issledovaniyakh resveratrola: soyedineniye bystro metaboliziruetsya kishechnymi kletkami i kishechnymi bakteriyami, i pik-ovyye plazmennyye kontsentratsii posle tipichnykh per-oralnykh doz znachitelno nizhe kontsentratsiy, ispolzovannykh v in vitro issledovaniyakh, demon-striruyushchikh aktivatsiyu SIRT1.
Effektivnaya doza i vremya priyema
Bolshinstvo klinicheskikh issledovaniy, pokazyvayushchikh znachimyye effekty, ispolzovaly dozy 150-500 mg trans-resveratrola v den. Produkty dostupnyye na maxfit.ee/et/category/resveratrol-et vklyuchayut NOW Natural Resveratrol 200mg 60 Veg. Capsules i OstroVit Resveratrol VEGE 60 vcaps - oba predostavlyayushchikh standartizirovannykh doz v etom klinicheski izuchennom diapazone.
Sobrazheniya po srokam:
- Resveratrol zhiror-as-tvorim i luchshe vsavsorb-tsiyayet-sya pri priyeme s yedoy, soderzhashchey zhiry.
- Dlya podderzhki tsirkad-iannogo ritma bylo predlozheno vecherneye dozirovaniye s uzhinm, poto-mu chto aktivnost SIRT1 sledueyt tsirkadi-annuyu model. Odnako optimalnoe vremya priyema ne bylo ustanovleno v ispytaniyakh na lyudyakh.
- Izbegayte kombinirovaniya vysoko-dozo-vogo resveratrola s antikoagulyan-tami bez meditsinskogo nadzora, pоtоmu chto resveratrol imeet legkiye antitrombotsi-tarnyye svoystva.
Kto naibolee skoryee vygryvayet
Tekushchaya dokazatelstvennaya baza predpolagayet, chto sleduyushchiye gruppy imeyut naibolee pravdopo-dobnyy sluchay dlya effektov resveratrola na son i stress:
- Pozhilyye vzroslyye (aktivnost SIRT1 sn-izhayet-sya s vozrastom; tsirkadi-annoye i kognitivnoye dokazatelstvo naibolee posled-ovateln-o v etoy demografi).
- Lyudi pod khronicheskim stressom s povyshen-nymi vospalitelnymi markerami, kotoryye mogut vygrat ot protivovopalitelnykh svo-ystv resveratrola.
- Lyudi, interesu-yushchiyesya shirokuyu neyrozashchditu a ne effekty ostrnykh snotvornykh.
Chestnyy vyvod
Resveratrol imeet izoshch-rennyy i pravdopodobnyy mekhanizm, svyazyvayushchiy yego s regulyatsiyey sna i stressa cherez SIRT1, tsirkadiannu-yu biologiyu i neyrovospaleniye. Chelovecheskiye klinicheskiye dokazatelstva realy, no ogranicheny, prichem bolsh-instvo supportiv-nykh dannykh proiskhodit iz spetsificheskikh populyatsiy (pozhilyye vzroslyye, postmenopauza-lnyye zhenshchiny v stressa zada-chakh), a ne iz obshchey populyatsii.
Dlya obshchego uluchsheniya sna resveratrol malo veroyatno privedet k dramaticheskim effektam spe-tsializirovannykh dobavok sna. Dlya kogo-to, uzhe zain-teresovannogo v resveratrol e po kardiova-skulyarnym ili dol-goletiya prichinam, vtorichnyy potentsial dlya tsirkadiannoy podderzhki i modulyatsii kortizola do-bavlyayet skromnoye dopolnitelnoye obosnovanie. Dostupnyy na maxfit.ee - razumnyy vybor dobavki za yego boley shiroky antioks-idanntnyy i protivovopalitelnyy profil.
ChZVO
Dostatochno li resveratrola v krasnom vine dlya effektov?
Net. Standartnyy boka-l krasnogo vina soderzhit priblizitelno 0.3-1 mg resveratrola. Klinicheskie ispytaniya, pokazyvayushchie znachimyye effekty, ispolzovaly 150-500 mg v den iz standartizirovannykh dobavok. Ozdorovitelnye svyazi s umerennym potrebleniyem vina veroyatno posredstvuyutsya obshchey matritsey polifenolov i drugimi faktorami obraza zhizni, a ne tol-ko soderzhaniym resveratrola.
Vzaimodeystvuyet li resveratrol s lekarstvami?
Resveratrol imeet legkiye antitrombotsitarnyye svoystva i mozhet vzaimo-deystvovat s antikoagulyantnymi lekarstvami (varf-arin, novyye peroralnyye antikoagulyanty). On takzhe mozhet vliyat na metabolizm nekotorykh lekarstv, pererab-atyvayemykh fermentami CYP450. Vsegda prokonsuliruytes s meditsinskim rabotnikm pered nachalom dobavleniya yesli vы prinimayte retsepturnyye preparaty.
Kak dolgo resveratrolу vliyat na son?
Nemnogie chelovecheskiye issledovaniya s dannymi sna provodilis 8-12 nedel pered obnaruzheniey kakogo-libo signala. Kratkosrochnoye ispolzovaniye malo veroyatno privedet k zametnym effektam sna. Yesli probu-yet resveratrol dlya blizhaykh snu preimushchestv, pozvolte ne menee 8 nedel pered otsenk-oy.
Ssylki
Witte, A. V., Kerti, L., Margulies, D. S., & Floel, A. (2014). Effects of resveratrol on memory performance, hippocampal functional connectivity, and glucose metabolism in healthy older adults. Journal of Neuroscience, 34(23), 7862-7870.
Evans, H. M., Howe, P. R., & Wong, R. H. (2017). Effects of resveratrol on cognitive performance, mood and cerebrovascular function in post-menopausal women; a 14-week randomised placebo-controlled intervention trial. Nutrients, 9(1), 27.
Toth, S., Brachtl, G., Ehrlich-Cimini, D., & Kessler, R. L. (2014). Resveratrol effects on circadian clocks: molecular mechanisms and implications for aging. Ageing Research Reviews, 16, 1-10.
