{"id":5549,"date":"2019-07-18T10:09:24","date_gmt":"2019-07-18T07:09:24","guid":{"rendered":"http:\/\/www.loodus.net\/?p=5549"},"modified":"2026-02-02T14:50:11","modified_gmt":"2026-02-02T12:50:11","slug":"susivesikute-ainevahetus-paastu-ajal","status":"publish","type":"post","link":"https:\/\/biospa.ee\/fl2025\/susivesikute-ainevahetus-paastu-ajal\/","title":{"rendered":"S\u00fcsivesikute ainevahetus paastu ajal"},"content":{"rendered":"

\"\"Veresuhkru piisavat taset hoiavad meie organismis toit, gl\u00fckoosi\u00a0tootmine ( gl\u00fckoneogenees) ja gl\u00fckogeeni l\u00f5hustumine (gl\u00fckogenol\u00fc\u00fcs). Paastumisel kasutab organism energiaallikana sisemisi varusid.<\/p>\n

Esimesena p\u00f5letab keha oma varudest \u00e4ra s\u00fcsivesikud, sest\u00a0nendest saab energiat k\u00f5ige lihtsamini. S\u00fcsivesikute \u00fclesanne\u00a0on hoida veresuhkru taset. Gl\u00fckoosi transport verest kudedesse\u00a0s\u00f5ltub insuliini ja gl\u00fckogeeni s\u00fcnteesist, st k\u00f5hun\u00e4\u00e4rme rakkude\u00a0funktsioneerimisest.<\/p>\n

P\u00e4rast s\u00f6\u00f6mist suureneb vere gl\u00fckoosisisaldus ja see stimuleerib\u00a0insuliini paiskumist verre. Insuliin omalt poolt reguleerib rakkude tundlikkust veresuhkru suhtes. Vaba gl\u00fckoos l\u00e4bib insuliini abil\u00a0rakumembraane ja j\u00e4\u00e4b rakku kasutamiseks. Kui p\u00e4rast s\u00f6\u00f6mist saabub korraga suur hulk gl\u00fckoosi, juhatatakse see v\u00e4rativeenide kaudu maksa, kus gl\u00fckoos salvestatakse gl\u00fckogeenina. Sellega\u00a0v\u00e4lditakse gl\u00fckoositaseme v\u00e4ga suurt t\u00f5usu veres.<\/p>\n

Kui organism toitaineid v\u00e4ljastpoolt juurde ei saa, t\u00e4idab seda funktsiooni maks oma varudest \u2013 gl\u00fckogeeni arvelt. Veresuhkruvarud v\u00e4henevad. Veresuhkru taset aitavad hoida ning reguleerida maks ja neerukoor (t\u00f5useb kortisoonitase) oma varudest, tootes\u00a0gl\u00fckoosi. Seda protsessi nimetatakse gl\u00fckoneogeneesiks. Umbes\u00a090% gl\u00fckoneogeneesist toimub maksas ja 10% neerukoores.\u00a0Gl\u00fckogeenist vabanenud gl\u00fckoos imendub verre ja hoiab \u00e4ra\u00a0h\u00fcpogl\u00fckeemiat, mis t\u00e4hendab veresuhkru taseme langemist liiga madalale. Suhkrutase p\u00fcsib veres madal, aga siiski normi piires\u00a0(umbes 3\u20133,5 mmol\/l), mis rahuldab rakkude, kudede, n\u00e4rvikoe\u00a0ja skeleti lihaste talitluse ning organismi ainevahetuse vajadused.<\/p>\n

Gl\u00fckoosi leidub k\u00f5ikides elundites ja kudedes, samuti veres.\u00a0Paastu ajal vere suhkrutase langeb ja v\u00e4heneb ka insuliini\u00a0hulk. Siis reguleerib vere suhkrutaset gl\u00fckagoon, mille toime\u00a0on insuliinile vastupidine: gl\u00fckagoon stimuleerib maksa, et too\u00a0l\u00f5hustaks gl\u00fckogeeni gl\u00fckoosiks. See t\u00e4hendab, et organism on \u00fcle l\u00e4inud sisemisele toidule, mis annab neerupealiste kudedele\u00a0v\u00f5imaluse taastada oma t\u00f6\u00f6. Tihti paraneb paastu j\u00e4rel rakkude\u00a0insuliinitundlikkus ja gl\u00fckoosi omastamine rakkudes.<\/p>\n

Maksa gl\u00fckogeen muutub gl\u00fckoosiks ja seda saab kasutada ka\u00a0anaeroobsetes tingimustes (olukorras, kus organism ei ole hapnikuga k\u00fcllaldaselt varustatud). Kui f\u00fc\u00fcsiline aktiivsus suureneb,\u00a0ei muutu gl\u00fckogeen enam gl\u00fckoosiks ning veresuhkru tase ei\u00a0t\u00f5use, vaid orga nismis l\u00fclitub sisse adenosiin trifosfaadi (ATF-i)\u00a0tootmine, mis on lihast\u00f6\u00f6ks vajalik energiaallikas. Seep\u00e4rast on\u00a0t\u00e4htis olla paastu ajal f\u00fc\u00fcsiliselt aktiivne: see hoiab lihastoonust,\u00a0parandab enesetunnet ja normaliseerib vere pH. V\u00e4hene liikuvus muudab vere happelisemaks.<\/p>\n","protected":false},"excerpt":{"rendered":"

Veresuhkru piisavat taset hoiavad meie organismis toit, gl\u00fckoosi\u00a0tootmine ( gl\u00fckoneogenees) ja gl\u00fckogeeni l\u00f5hustumine (gl\u00fckogenol\u00fc\u00fcs). Paastumisel kasutab organism energiaallikana sisemisi varusid. Esimesena p\u00f5letab keha oma varudest \u00e4ra s\u00fcsivesikud, sest\u00a0nendest saab energiat […]<\/p>\n","protected":false},"author":1,"featured_media":7008,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[],"class_list":["post-5549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-keha-ja-tervis"],"yoast_head":"\nS\u00fcsivesikute ainevahetus paastu ajal - Loodus BioSpa<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00fcsivesikute ainevahetus paastu ajal - Loodus BioSpa\" \/>\n<meta property=\"og:description\" content=\"Veresuhkru piisavat taset hoiavad meie organismis toit, gl\u00fckoosi\u00a0tootmine ( gl\u00fckoneogenees) ja gl\u00fckogeeni l\u00f5hustumine (gl\u00fckogenol\u00fc\u00fcs). Paastumisel kasutab organism energiaallikana sisemisi varusid. 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