Mitundu ya matenda ashuga 1
Chimodzi mwazinthu zomwe zimapangitsa kuti matendawa akhazikike ndi chidwi cha matenda ashuga. Kuphatikiza apo, pali zinthu zingapo zakunja zomwe zimawonjezera chiopsezo cha mawonekedwe ake.
Masiku ano, matenda a shuga ndi njira yomwe singachiritsidwe kwathunthu.
Chifukwa chake, wodwala yemwe ali ndi matenda okhazikika ayenera kutsatira malangizo onse ndi chitsogozo cha madokotala pamoyo wawo wonse, chifukwa ndizosatheka kuchiritsa matendawa kwathunthu.
Kodi matenda ndi chiyani?
Matenda a shuga ndi matenda omwe amachitika chifukwa cha zovuta za dongosolo la endocrine. Pa kukula kwake, kuphwanya njira zonse za metabolic m'thupi kumachitika.
Kuperewera kwa mphamvu kwa insulini ya mahomoni kapena kukanidwa ndi maselo amthupi kumabweretsa kuchuluka kwakukulu kwa glucose m'magazi. Kuphatikiza apo, pali zovuta pantchito yamadzi kagayidwe, kuchepa kwa madzi kumawonedwa.
Mpaka pano, pali mitundu iwiri yayikulu ya pathological process:
- Mtundu woyamba wa shuga. Amayamba chifukwa chosapanga (kapena kupanga zochuluka) insulin ndi kapamba. Matendawa amtunduwu amaonedwa ngati amadalira insulin. Anthu omwe ali ndi matenda amtunduwu a shuga amadalira jakisoni wa mahomoni nthawi yonse ya moyo wawo.
- Type 2 matenda a shuga ndi njira yodziyimira payokha ya insulin. Zimachitika chifukwa choti maselo amthupi amasiya kuzindikira insulini yopangidwa ndi kapamba. Chifukwa chake, pamakhala pang'onopang'ono kupezeka kwa shuga m'magazi.
Nthawi zina, madokotala amatha kudziwa mtundu wina wa matenda, omwe ndi matenda osokoneza bongo.
Kutengera mtundu wa pathology, zomwe zimayambitsa kukula kwake zimatha kukhala zosiyanasiyana. Pankhaniyi, pali zinthu zina zomwe zimafalitsa matendawa.
Khalidwe la chibadwa cha matenda ashuga komanso chibadwa chake chimagwira ntchito yofunika kwambiri.
Kukopa kwa cholowa chazinthu pakuwonekera kwa matenda
Makonzedwe a matenda ashuga angachitike ngati pali cholowa chathu. Pankhaniyi, mawonekedwe a matendawa amatengera mbali yayikulu.
Mitundu ya matenda amtundu 1 wa shuga iyenera kuchokera kwa makolo onse awiri. Kafukufuku akuwonetsa kuti kuchuluka kwa matendawo omwe amadalira insulin kuchokera kwa mayi kumawonekera pafupifupi atatu peresenti ya ana obadwa. Nthawi yomweyo, kuchokera kumbali ya abambo, cholowa chokhala ndi matenda ashuga 1 chimachulukitsidwa pang'ono ndikufika peresenti khumi. Izi zimachitika kuti makolo ndi onsewo akhoza kuyamba kudwala matenda. Pankhaniyi, mwana ali ndi chiopsezo chowonjezereka cha matenda a shuga 1, omwe amatha kufikira 70%.
Mtundu wodziyimira pawokha wa insulin umadziwika ndi gawo lalikulu la zochita za cholowa. Izi ndichifukwa choti munthu ali ndi chibadwa chokhala ndi matenda ashuga. Malinga ndi ziwerengero zamankhwala, chiwopsezo chomwe mtundu wamatenda a shuga ungawonetse mwa mwana, ngati m'modzi mwa makolo ndiwotengera matenda, ali pafupifupi 80%. Nthawi yomweyo, cholowa cha mtundu wachiwiri wa shuga chikuwonjezeka mpaka pafupifupi zana limodzi ngati matendawa akukhudza onse mayi ndi bambo.
Pamaso pa matenda a shuga m'modzi mwa makolo, mawonekedwe amtundu wa shuga amayenera kuperekedwa mwachidwi mukamakonzekera kukhala mayi.
Chifukwa chake, chithandizo cha majini chiyenera kukhala chofuna kuthetseratu ziwopsezo zambiri kwa ana omwe m'modzi mwa makolo amapezeka ndi matenda a shuga a 2. Mpaka pano, palibe njira yomwe ikanaperekera chithandizo cha chibadwa chamtsogolo.
Potere, mutha kutsatira njira zapadera ndi malingaliro azachipatala omwe angachepetse chiopsezo ngati ali ndi vuto la matenda ashuga.
Ndi zinthu zina ziti zowopsa zomwe zilipo?
Zomwe zimayambitsa zimatha kudziwitsanso chiwonetsero cha matenda ashuga.
Tiyenera kukumbukira kuti pamaso pa chinthu chobadwa nacho, chiwopsezo cha matenda ashuga chimachulukana kangapo.
Kunenepa kwambiri ndi chifukwa chachiwiri cha chitukuko cha matenda a shuga. Ndikofunikira kuyang'anitsitsa kulemera kwanu kwa magulu amtundu wa anthu omwe ali ndi mafuta ochuluka mthupi mchiuno ndi m'mimba. Pankhaniyi, ndikofunikira kuyambitsa kuwongolera kwathunthu pazakudya za tsiku ndi tsiku ndikuchepetsa pang'onopang'ono kulemera koyenera.
Zinthu zazikulu zomwe zimathandizira kuti matendawa atukuke ndi izi:
- Kunenepa kwambiri komanso kunenepa kwambiri.
- Kupsinjika kwambiri komanso kusokonezeka kwa malingaliro.
- Kukhala ndi moyo wopanda ntchito, kusowa zochita zolimbitsa thupi.
- Matenda opatsirana oyambitsidwa ndi matenda opatsirana.
- Kuwonetsedwa kwa matenda oopsa, omwe atherosulinosis imadziwonetsera yokha, popeza kuti ziwiya zomwe zakhudzidwazo sizingakwanitse kupereka ziwalo zonse ndi magazi abwinobwino, kapamba, pamenepa, amavutika kwambiri, omwe amayambitsa matenda ashuga.
- Kumwa magulu ena a mankhwala. Zowopsa zomwe zimapezeka m'magulu a thiazides, mitundu ina ya mahomoni ndi okodzetsa, mankhwala a antitumor. Chifukwa chake, ndikofunikira kuti musamadziyese nokha ndikumwa mankhwala aliwonse okhawo omwe mukuuzidwa ndi adokotala. Kupanda kutero, zimakhala kuti wodwalayo amachiritsa matenda amodzi, ndipo zotsatira zake amakhala ndi matenda a shuga.
- Kukhalapo kwa matenda am'mimba mwa azimayi. Nthawi zambiri, matenda ashuga amatha kuchitika chifukwa cha matenda monga ma polycystic ovary, gestosis pa nthawi ya bere. Kuphatikiza apo, ngati mwana wamkazi wabereka mwana wolemera oposa kilogalamu zinayi, izi zitha kukhala pachiwopsezo cha kukula kwa matenda amisempha.
Njira yokhayo yoyenera yothandizira odwala matenda ashuga komanso kudya mokwanira sizingathandize kuchepetsa matenda. Udindo wapadera uyenera kuchitika chifukwa cholimbitsa thupi tsiku ndi tsiku, zomwe zimathandiza kugwiritsa ntchito mphamvu zochulukirapo zomwe zimalandira kuchokera ku chakudya, komanso zimathandizira pakumwa shuga.
Matenda a Autoimmune amathanso kuyambitsa matenda a shuga a mtundu woyamba, monga chithokomiro komanso kusowa kwamphamvu kwa corticosteroid.
Njira zochepetsera mwayi wokhala ndi matendawa?
Njira yabwino kwambiri yodzitetezera kukhalira kwa chinthu chobadwa nayo imatha kukhala kuchita zolimbitsa thupi. Munthu amasankha zomwe amakonda - amayenda tsiku lililonse mu mpweya wabwino, kusambira, kuthamanga kapena masewera olimbitsa thupi.
Yoga imatha kukhala othandizira abwino, omwe sangangotukula thupi, komanso amathandizanso kuti mukhale ndi thanzi labwino. Kuphatikiza apo, njira zoterezi zidzakuthandizani kuti muchotse mafuta ochulukirapo.
Tsoka ilo, ndizosatheka kuthetsa chibadwa chomwe chimayambitsa kuyambika kwa matenda ashuga. Ichi ndichifukwa chake ndikofunikira kusinthanitsa zifukwa zina pamwambapa:
- pewani kupsinjika ndipo musakhale wamanjenje
- yang'anirani zakudya zanu komanso kuchita masewera olimbitsa thupi pafupipafupi,
- Sankhani mosamala mankhwala ochizira matenda ena,
- Limbikitsani chitetezo chokwanira nthawi zonse kuti mupewe kuwonetsa matenda opatsirana,
- munthawi yofufuza zamankhwala.
Zokhudza zakudya, ndikofunikira kupatula shuga ndi zakudya zotsekemera, kuyang'anira kuchuluka ndi zakudya zomwe zimadyedwa. Zakudya zomanga thupi zopezeka mosavuta komanso zakudya zomwe sizimagwiritsidwa ntchito nthawi yomweyo siziyenera kumenyedwa.
Kuphatikiza apo, kuti mudziwe kupezeka komanso kuthekera kwa matendawa, kuyesedwa kwakanthawi kachipatala kungachitike. Ichi ndiye, choyambirira, kuwunika kwa kukhalapo kwa maselo otsutsana a beta masamba a kapamba.
Onetsetsani kuti mukufunsa dokotala wanu momwe angakonzekerere kuyezetsa magazi kwa shuga ndi kutengera kwa chibadwa. Mu nthawi yabwinobwino ythupi, zotsatira za kafukufuku ziyenera kuwonetsa kusapezeka kwawo. Mankhwala amakono amathandizanso kudziwa ma antibodies oterewa ma labotale omwe ali ndi machitidwe apadera oyesera. Pachifukwa ichi, munthu ayenera kupereka magazi a venous.
Mu kanema munkhaniyi, adokotala akuwuzani ngati matenda ashuga atengera.
Mtundu I shuga
Matenda a Type I ndi matenda a autoimmune omwe amadziwika ndi zizindikiro zotsatirazi: kuchuluka kwambiri kwa hyperglycemia, kupezeka kwa hypoklycemia ndi ketoacidosis ndi kuwonongeka kwa matenda ashuga, kukula msanga kwa vuto la insulin (mkati mwa masabata 1-2) matenda atayamba. Kuperewera kwa insulin mu mtundu 1 wa shuga ndikubwera chifukwa cha kuwonongeka kwathunthu kwa ziphuphu zakumimba zomwe zimayambitsa kuphatikizidwa kwa insulin mthupi la munthu. Ngakhale pali maphunziro ambiri m'derali, njira yopangira matenda a shuga 1 sichidziwikebe bwinobwino. Amakhulupirira kuti zomwe zimayambitsa kukula kwa matenda ashuga amtundu wa 1 ndikuwonongeka kwa β-maselo a kapamba chifukwa cha chinthu chimodzi kapena zingapo zowononga zachilengedwe. Zinthu zotere ndi monga ma virus, zinthu zapoizoni, zakudya zosuta, nkhawa. Kuyerekezera kumeneku kumatsimikiziridwa ndi kukhalapo kwa autoantibodies kwa ma pancreatic islet antigen, omwe, malinga ndi ofufuza ambiri, ndi umboni wa zochita za autoimmune mthupi ndipo samachita nawo limodzi machitidwe amawonongeko a β cell. Kuphatikiza apo, pali kuchepa kwachilengedwe kwa chiwerengero cha ma autoantibodies pamene nthawi ikutha kuchokera ku chiyambi cha matenda a shuga a mtundu woyamba. Ngati m'miyezi yoyambirira kuyambira kumayambiriro kwa matendawa, ma antibodies apezeka mu 70-90% yoyesedwa, ndiye kuti patadutsa zaka 1-2 kuchokera kumayambiriro kwa matendawa - mu 20% yokha, pomwe ma autoantibodies amapezekanso asanachitike chiwonetsero cha matenda amtundu 1 komanso abale a odwala, nthawi zambiri abale omwe ali ndi machitidwe ofanana a HLA. Autoantibodies to pancreatic islet antigen ndi gulu G immunoglobulins. Tiyenera kudziwa kuti mtundu wa matenda a shuga a I, ma IgM kapena a IgA samapezeka ngakhale atapezeka kuti ali ndi matenda owopsa. Zotsatira za kuwonongeka kwa maselo a β-cell, ma antigen amatulutsidwa zomwe zimayambitsa ntchito ya autoimmune. Ma autoantigener angapo amafunikira gawo la activate autoreactive T-lymphocyte: preproinsulin (PPI), glutamate decarboxylase (GAD), insulini yokhudzana ndi antigen 2 (I-A2) ndi zinc transporter (ZnT8) 30, 32.
Chithunzi 1 - Njira yodzikongoletsera yopanga matenda a shuga 1, poganizira majini ndi zinthu zakunja
Pambuyo pakuwonongeka kwa β-cell, mamolekyulu a HLA 2 a HLA amayamba kuwonetsedwa pamtunda wawo, nthawi zambiri samapezeka pamaselo a chitetezo chamthupi. Chiwonetsero cha ma antigen a class 2 HLA opangidwa ndi ma cell omwe alibe chitetezo chimasandutsa maselo ena kukhala antigen omwe amawonetsa maselo ndipo amawayika pangozi kukhalapo kwawo. Cholinga chakuwonetsa kosasinthika kwa mapuloteni a MHC a kalasi 2 ndi maselo amtundu wina samveka bwino. Komabe, zidawonetsedwa kuti kukhudzana kwa nthawi yayitali kwa ma cell a β omwe ali ndi γ-interferon, mawu oterewa ndi otheka. Kugwiritsa ntchito kwa ayodini kumalo komwe kumathetsereka kumayendera limodzi ndi mafotokozedwe ofanana a MHC a kalasi 2 pa thyrocyte, zomwe zimapangitsa kuti chiwonetsero cha odwala omwe ali ndi autoimmune chithokomiro m'magawo awa. Izi zikuwonetseranso gawo la zinthu zachilengedwe mwadzidzidzi zomwe zimafotokozera mapuloteni a MHC a kalasi yachiwiri ya β-cell. Poganizira mfundo zomwe zili pamwambapa, titha kuganiza kuti mawonekedwe a polymorphism amtundu wa HLA mwa anthu ena amakhudza mphamvu ya maselo a β kufotokoza mapuloteni a MHC a kalasi 2 ndipo, motero, lingaliro lamtsogolo.
Kuphatikiza apo, posachedwapa anapeza kuti ma cell a "insulin" amapanga mapuloteni ena 1 MHC omwe amapereka ma peptides ku cytotoxic CD8 + T lymphocyte.
Udindo wa T-lymphocyte mu pathogeneis wa mtundu 1 wa matenda ashuga
Komabe, polymorphism ya gene ya HLA ndiyo imasankha masankhidwe a T-lymphocyte pakusasitsa mu thymus. Pamaso pa zovuta zina zamtundu wa HLA, mwachiwonekere, palibe kuchotsedwa kwa T-lymphocyte yomwe imanyamula zolandilira za autoantigen (s) zama pancreatic β-cell, pomwe mu thupi labwino ma T-lymphocyte amawonongeka pamasamba . Chifukwa chake, pakuwonetseratu kuti pali mtundu wa matenda ashuga 1, ma T-lymphocyte ena am'thupi amayendayenda m'magazi, omwe amayamba ndi magazi ena a autoantigen m'magazi. Nthawi yomweyo, mulingo wa maantiantigen amakwera pamtengo wamtengo wapatali mwina chifukwa chakuwonongeka mwachindunji kwa maselo a β-cell (mankhwala, ma virus) kapena kukhalapo kwa ma viral othandizira m'magazi omwe ma antigeneli amawoloka ndi ma pancreatic β-cell antigen.
Tisaiwale kuti maselo a T-regoda (Treg) amagwira ntchito mwachindunji pakayendetsedwe kazinthu zopanga ma T-lymphocyte, motero, amawonetsetsa kuti homeostasis ndi kupirira kwapakati pa 16, 29. Ndiye kuti, maselo a Treg amagwira ntchito yoteteza thupi ku matenda a autoimmune. Ma cell a Regulatory T (Tregs) amagwira nawo ntchito popititsa patsogolo kulekerera kwa auto, immune homeostasis, ndi chitetezo chokwanira cha antitumor. Amakhulupirira kuti atenga gawo lalikulu pakukula kwa khansa. Chiwerengero chawo chimagwirizana ndi matenda ovutitsa kwambiri ndipo amalola kuneneratu nthawi yamankhwala. Kuphatikiza apo, kuchuluka kwa ntchito kapena mafupidwe a maselo a Tregs kumatha kuyambitsa matenda osiyanasiyana a autoimmune, kuphatikiza matenda a shuga a mtundu woyamba.
Maselo a Treg ndi gawo lochulukirapo la ma T-lymphocyte akuwonetsa ma interleukin 2 receptors awo pamtunda (i.e., CD25 +). Komabe, CD25 sichizindikiro chokhacho cha maselo a Treg, chifukwa mawonekedwe ake a activor T lymphocyte amachitika pambuyo pa kutsegulidwa. Chizindikiro chachikulu cha T-regulation lymphocyte ndi intracellular transcript factor FoxP3 yomwe ikuwonetsedwa pafoniyo, yomwe imadziwikanso kuti IPEX kapena XPID 9, 14, 26. Ndizoyang'anira zazikulu kwambiri zomwe zimayambitsa kukhazikitsa ndi kugwira ntchito kwa maselo othandizira a T. Kuphatikiza apo, ex-native IL-2 ndi receptor yake zimathandizira kwambiri pakupulumuka kwapadera kwama cell a Treg.
Palinso lingaliro loti machitidwe a autoimmune samayambitsa ndi chiwonongeko cha β-cell, koma mwa kusinthika kwawo chifukwa cha chiwonongeko chotere.
Kutengera kwa chibadwa cha matenda ashuga
Chifukwa chake, gawo lalikulu la chibadwa chomwe chimapangitsa kuti mtundu wa matenda ashuga ukhale woyamba 1 limapangidwa ndi majini a dongosolo la HLA, omwe ndi ma genol encoding a class 2 a main histocompatability tata a munthu. Pakadali pano palibe zigawo za HLA zopitilira 50 zomwe zimakhudza kwambiri chiopsezo cha matenda ashuga 1. Ambiri mwa madera awa ali ndi mitundu yosangalatsa koma yosadziwika kale. Madera amtundu womwe umalumikizidwa ndi chitukuko cha matenda a matenda a shuga 1 nthawi zambiri amasonyezedwa ndi IDDM Association loci. Kuphatikiza pamtundu wa HLA system (IDDM1 locus), dera la insulin pa 11p15 (IDDM2 locus), 11q (IDDM4 locus), 6q, ndipo mwina dera lomwe lili pa chromosome 18 lili ndi mayanjano ofunikira ndi matenda amtundu wa shuga. (GAD1 ndi GAD2, yomwe imata enzyme glutamate decarboxylase, SOD2, yomwe imasokoneza superoxide dismutase, ndi Kidd magazi gulu locus) mwina amagwira ntchito yofunika.
Zoci zina zofunika zomwe zimagwirizanitsidwa ndi T1DM ndi genp 1P13 PTPN22, CTLA4 2q31, interleukin-2cy receptor (CD25 yolembedwa ndi IL2RA), 10p15 locus, IFIH1 (yomwe imadziwikanso kuti MDA5) pa 2q24 ndi CLEC16A (KIAA0350) yaposachedwa kwambiri ku 16p13, PTPN2 pa 18p11 ndi CYP27B1 pa 12q13.
Jini la PTPN22 limatulutsa puloteni ya lymphoid tyrosine phosphatase yotchedwanso LYP. PTPN22 imagwirizana mwachindunji ndi ma activation a T. LYP imachepetsa chizindikiro cha T-cell receptor (TCR). Mtunduwu ukhoza kugwiritsidwa ntchito ngati chandama chakuwongolera ntchito ya maselo a T, chifukwa imagwira ntchito zoletsa kusainira kwa TCR.
Jini la CTLA4 limayang'anira ma cell-rec-receptors pamaselo a T-lymphocyte cell. Ndiwotenganso gawo labwino pakuyambitsa chitukuko cha matenda amtundu wa 1, chifukwa zimasokoneza ma activation a T-cell.
Jini la interleukin 2α receptor gene (IL2RA) limakhala ndi ma exons asanu ndi atatu ndipo limakhazikitsa unyolo wa α wa IL-2 receptor complex (yomwe imadziwikanso kuti CD25). IL2RA ili ndi gawo lofunikira kwambiri pakukhazikitsa chitetezo chokwanira. IL2RA imawonetsedwa pamaselo oyendetsera T, omwe, monga tafotokozera pamwambapa, ndiofunikira kuti azigwira ntchito, komanso mogwirizana ndi kuponderezedwa kwa kuyankha kwa chitetezo cha mthupi cha T komanso matenda a autoimmune. Ntchito iyi ya gen2 ya IL2RA ikuwonetsa udindo wake mu pathogenesis ya T1DM, mwina ndikuchita nawo maselo othandizira a T.
Jini la CYP27B1 limasokoneza vitamini D 1cy-hydroxylase. Chifukwa chakufunika kwa Vitamini D pakuwongolera chitetezo chathupi, chimawerengedwa ngati mtundu wakusankhidwa. Elina Hipponen ndi anzawo adawona kuti mtundu wa CYP27B1 umalumikizidwa ndi matenda amtundu 1 shuga. Mtundu mwina umaphatikizapo njira yopangira cholembera. Zotsatira zamaphunziro, zidawonetsedwa kuti vitamini D imatha kupondereza zochita za autoimmune zochokera ku ma pancreatic β-cell. Umboni wa epidemiological ukusonyeza kuti kuwonjezereka kwa vitamini D kumatha kusokoneza kukula kwa matenda a shuga 1.
Jini la CLEC16A (lomwe kale linali KIAA0350), lomwe limafotokozedwa pafupifupi m'maselo a chitetezo cha mthupi ndipo limasunga mtundu wa mapuloteni amtundu wa C wa lectin. Amawonetsedwa mu ma lymphocyte ngati ma APC apadera (ma cell a antigen-presenting). Ndizosangalatsa kuti mtundu wa lectins C amadziwika kuti amagwira ntchito yofunika kwambiri pakuyamwa kwa antigen ndikupereka ma cell a β.
Kuwunika kwa majini a mtundu wa matenda a shuga omwe amadalira insulin omwe amagwirizana ndi zovuta zazikulu za histocompatibility mu mbewa kunawonetsa kuti main histocompatibility tata imathandizira kwambiri pakukweza matendawa mogwirizana ndi mitundu ina 10 ya kudziwikiratu kwa malo ena a genome.
Amakhulupirira kuti dongosolo la HLA ndilo lingaliro lamtundu lomwe limatsimikizira kutengera kwa ma pancreatic β-cell ku ma antigen virus, kapena kuwonetsa kukula kwa chitetezo chokwanira. Zinapezeka kuti ndi insulin yomwe amadalira matenda a shuga, ma antigen B8, Bwl5, B18, Dw3, Dw4, DRw3, DRw4 amapezeka kawirikawiri. Zinawonetsedwa kuti kukhalapo kwa ma antigen a B8 kapena B15 HLA mu odwala kumawonjezera chiopsezo cha matenda a shuga nthawi ziwiri mpaka zitatu, komanso kukhalapo kwa B8 ndi B15, nthawi 10. Posankha ma Dw3 / DRw3 haplotypes, chiwopsezo cha matenda ashuga chikuwonjezeka ndi katatu, Dw4 / DRw4 - ndi 4.9, ndi Dw3 / DRw4 - ndi 9.4 nthawi.
Mitundu yayikulu ya dongosolo la HLA lomwe limagwirizanitsidwa ndi tsogolo la mtundu woyamba wa matenda ashuga ndi mitundu ya HLA-DQA1, HLA-DQA, HLA-DQB1, HLA-DQB, HLA-DRB1, HLA-DRA ndi HLA-DRB5. Chifukwa cha kafukufuku wambiri ku Russia ndi padziko lonse lapansi, zapezeka kuti kuphatikiza mitundu yosiyanasiyana ya ma HLA gene kumakhala ndi zotsatila zosiyanasiyana pachiwopsezo cha matenda a shuga 1. Chiwopsezo chachikulu chimalumikizidwa ndi haplotypes DR3 (DRB1 * 0301-DQA1 * 0501-DQB * 0201) ndi DR4 (DRB1 * 0401,02,05-DQA1 * 0301-DQB1 * 0302). Chiwopsezo chapakatikati chimaphatikizidwa ndi ma haplotypes DR1 (DRB1 * 01-DQA1 * 0101-DQB1 * 0501), DR8 (DR1 * 0801-DQA1 * 0401-DQB1 * 0402), DR9 (DRB1 * 0902-DQA1 * 0301-DQB1 * 0303) ndi DR10 (DRB2 * 0101-DQA1 * 0301-DQB1 * 0501). Kuphatikiza apo, zidapezeka kuti kuphatikiza kwina kotsutsana kumakhala ndi mphamvu yoteteza pokhudzana ndi chitukuko cha matenda ashuga. Mafuchi awa amaphatikizapo DR2 (DRB1 * 1501-DQA1 * 0102-DQB1 * 0602), DR5 (DRB1 * 1101-DQA1 * 0102-DQB1 * 0301) - chitetezo chodzitetemera kwambiri, DR4 (DRB1 * 0401-DQA1 * 0301-DQB1 * 0301), DR4 (DRB1 * 0403-DQA1 * 0301-DQB1 * 0302) ndi DR7 (DRB1 * 0701-DQA1 * 0201-DQB1 * 0201) - chitetezo chapakatikati. Dziwani kuti kudziwika bwino kwa matenda a shuga 1 kumadalira kuchuluka kwa anthu. Chifukwa chake, ena mwa anthu obisalirapo amakhala ndi mwayi woteteza (Japan), ndipo winanso amagwirizana ndi chiopsezo (maiko aku Scandinavia).
Chifukwa chofufuzira kosalekeza, majini atsopano amapezeka pafupipafupi omwe amagwirizana ndi chitukuko cha matenda a shuga 1. Chifukwa chake, pakufufuza m'mabanja aku Sweden pa 2360 SNP chikhazikitso mkati mwa malo apamwamba a histocompatability tata ndi moyandikana ndi loci m'chigawo cha centromere, zambiri zazomwe zimayambitsa matenda a shuga 1 ndi IDDM1 locus mu main main histocompatability tata, yomwe imatchulidwa kwambiri mu HLA-DQ / dera, idatsimikiziridwa DR. Komanso, zidawonetsedwa kuti mu gawo la centromeric, nsonga ya mayanjano inali mu genetic region encodeor 1, 4, 5-triphosphate receptor 3 (ITPR3). Chiwopsezo cha anthu ku ITPR3 chinali 21,6%, zomwe zikuwonetsa kufunikira kwa mtundu wa ITPR3 pakupanga mtundu wa matenda ashuga a mtundu woyamba. Kuwunikira kawiri ka locus kunatsimikizira zotsatira za kusintha kwa mtundu wa ITPR3 pakukula kwa mtundu woyamba wa shuga, pomwe gene ili losiyana ndi jini iliyonse yomwe imalemba ma molekyulu a kalasi yachiwiri ya zovuta zazikulu za histocompatibility.
Monga tanena kale, kuwonjezera pa kutengera kwa chibadwa, kukula kwa mtundu woyamba wa shuga kumakhudzidwa ndi zinthu zakunja. Monga momwe kafukufuku waposachedwa wapeza, chimodzi mwazinthu izi ndi kufalitsa ma immunoglobulin kuchokera kwa mayi wodwala wa autoimmune kupita kwa ana. Zotsatira za kufala kumeneku, 65% ya ana adayamba kudwala matenda ashuga, pomwe nthawi yomweyo, poletsa kufalitsa kwa ma immunoglobulin kwa mayi kupita kwa mbewu, 20% yokha idadwala mwa ana.
Ubwenzi wamtundu wa 1 ndi matenda ashuga
Posachedwa, zambiri zosangalatsa zapezeka pa ubale wa majini pakati pa mitundu yoyamba ndi yachiwiri ya matenda ashuga. Li et al. (2001) anawunika kuchuluka kwa mabanja omwe ali ndi mitundu iwiri ya matenda ashuga ku Finland ndipo adawerengera, odwala omwe ali ndi matenda amtundu wa II, mayanjano apakati pa mbiri ya mabanja a matenda amtundu wa 1, antibodies to glutamate decarboxylase (GADab), ndi HLA-DQB1 genotypes oyanjana ndi mtundu woyamba wa matenda ashuga . Kenako, m'mabanja osakanikirana omwe ali ndi mtundu woyamba wa 2 ndi mtundu wa matenda ashuga, adawerengera ngati kuchuluka kwa HLA m'mabanja omwe ali ndi matenda amtundu wa 2 amakhudzanso matenda a shuga. Mwa mabanja 695 momwe mudali odwala opitilira 1 omwe ali ndi matenda amtundu 2, 100 (14%) adalinso ndi abale omwe ali ndi matenda ashuga 1. Odwala omwe ali ndi mtundu wachiwiri wa matenda ashuga ochokera m'mabanja osakanikirana anali ndi mwayi wokhala ndi ma antibodies a GAD (18% motsutsana 8%) ndi DQB1 * 0302 / X genotype (25% motsutsana 12%) kuposa odwala ochokera m'mabanja omwe ali ndi mitundu iwiri yokha ya shuga, komabe, iwo panali ma frequotype ochepa a DQB1 * 02/0302 genotype poyerekeza ndi odwala achikulire omwe ali ndi matenda a shuga 1 (4% motsutsana 27%). M'mabanja osakanikirana, kuyankha kwa insulin pakutsitsa glucose kunali kwakukulu mwa odwala omwe ali ndi chiopsezo cha HLA-DR3-DQA1 * 0501-DQB1 * 02 kapena DR4 * 0401/4-DQA1 * 0301-DQB1 * 0302 haplotypes, poyerekeza ndi odwala opanda ma-hablotypes. Izi sizimadalira kukhalapo kwa antibodies a GAD. Olembawo adanenetsa kuti mitundu 1 ndi 2 ya matenda ashuga imakhala m'mabanja amodzi. Mbiri yakubadwa kwa odwala omwe ali ndi vuto la matenda ashuga amtundu wa 2 amatsimikizira mtundu wa 2 odwala matenda ashuga kukhalanso kwa autoantibodies ndipo, ngakhale atakhala kuti ali ndi antibodies, kuti achepetse insulin. Maphunziro awo amatsimikiziranso mgwirizano wamtundu pakati pa matenda amtundu wa 1 shuga ndi matenda ashuga a 2 chifukwa cha HLA locus.
Pomaliza
Pomaliza, zitha kudziwika kuti pazaka 10 zapitazi, ofufuza adapita patsogolo kwambiri pakufufuza za matenda amtundu wa 1, komabe, njira ya cholowa chamtundu wa 1 sichikudziwikiratu, ndipo palibe lingaliro labwino la momwe matenda a matenda ashuga amakhudzidwira. zambiri m'derali. Zikuwoneka kuti cholinga chachikulu pakuphunzira za matenda ashuga pakadali pano chiyenera kukhala kutsimikizira kwa matenda ashuga, poganizira zosiyana siyana za anthu osiyanasiyana komanso momwe amagwirizanirana. Pankhaniyi, chosangalatsa kwambiri kuyambira pakuwona mtundu wa matenda ashuga 1 kungakhale kupenda kwamapangidwe: 1) pewani kufa kwa T-lymphocyte yosinthika posankha mu thymus, 2) malankhulidwe osazolowereka a mainococatability complex mamolekyulu a β-cell, 3) kusagwirizana pakati paorentrate ndi malamulo T-lymphocyte, komanso kusaka kwa kulumikizana kwantchito pakati pa loci yolumikizana ndi matenda amtundu wa 1 komanso njira zachitukuko cha autoimmunity. Poganizira zotsatira za kafukufuku waposachedwa, ndizotheka ndi lingaliro lina kuganiza kuti kuwululidwa kwathunthu kwa mitundu ya njira zakukula kwa matenda ashuga komanso cholowa chake sichiri kutali kwambiri.
Kodi matenda ashuga ndi chiani?
Matenda a shuga ndi njira yomwe thupi la munthu limagwiritsa ntchito mphamvu (glucose) yolandilidwa kudzera mu chakudya pazinthu zina. M'malo mopereka minofu ndi ziwalo, imangokhala m'magazi, mpaka amafikira pazovuta kwambiri.
Shuga amachepetsedwa nthawi yomweyo! Matenda a shuga m'kupita kwa nthawi angayambitse matenda ambiri, monga mavuto amawonedwe, khungu ndi tsitsi, zilonda zam'mimba, zilonda zam'mimba komanso matenda otupa! Anthu amaphunzitsa zinzake zowawa kuti azisintha shuga. werengani.
Kuphwanya kumachitika chifukwa chakuchotsa kapena kupanga insulin yokwanira - mahomoni a kapamba, omwe amayang'anira kagayidwe kazakudya m'thupi. Hormone iyi imalimbikitsa kukweza kwa glucose m'maselo, kudzaza thupi ndi mphamvu komanso kumasula mitsempha yamagazi yamagazi. Matendawa amakula pamene insulini sikokwanira kuyenda kwa glucose mu ziwalo. Pali mitundu iwiri ya matenda ashuga. Kusiyana kwakukulu pakati pa matenda a shuga amtundu 1 ndi omwe amayambitsa matendawa. Kuphatikiza apo, kusiyana kuli makamaka pakukweza, njira ndi chithandizo cha matenda a zam'tsogolo. Palinso zosiyana malinga ndi jenda, zaka komanso malo omwe wodwalayo amakhala.
Makhalidwe oyerekeza onse a mitundu yonseyi
Zofanana poyerekeza za mtundu woyamba ndi wachiwiri wa matenda ashuwarawo zikuwonetsedwa pagome:
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