Ofufuza ku US Centers for Disease Control and Prevention (CDC) adatulutsa zotsatira zosonyeza kuti amayi a ku America makamaka omwe ali ndi vuto la kuchepa kwa ayodini -ali pachiopsezo cha hypothyroidism chifukwa chofala kwa poizoni.
Kwa zaka zambiri, pakhala pali nkhawa zokhudzana ndi zotsatira za chithokomiro. Nkhaniyi ndi yotsutsana, monga mabungwe a boma, magulu a zachilengedwe, ogwirizanitsa nzika, asilikali, ndi makampani odzitetezera omwe akuyambitsa matendawa akhala akubwereranso pazomwe zimakhudza thanzi labwino, zotsatila zoyendetsera chitetezo, komanso kuchuluka kwa zinthu zotetezedwa. chakudya ndi madzi athu.
Pa kafukufuku wina, gulu lina la National Academy of Sciences linatsimikiza kuti kuwonongeka kwa chithokomiro kumakhudza luso la chithokomiro kuti lidziwe ayodini, koma kuti zotsatira zake zikhoza kuchitika pokhapokha ngati zikuwoneka bwino kwambiri. Kufufuza kwa CDC, komabe, kumasonyeza kuti sizingowonjezereka zokha, koma kwa nthawi yoyamba, zasonyeza kuti ngakhale zochepa zomwe zimawonekera kwa anthu ambiri ku America zingakhale ndi zotsatira zoopsa pa chithokomiro.
Mafuta a Perchlorate ndi omwe amapezeka kuti amayambitsa madzi a madzi akumwa, komanso zipatso, ndiwo zamasamba ndi mbewu zothirira madzi owonongedwa, ndi mkaka ndi mkaka kuchokera ku ng'ombe zomwe zimadyetsedwa ndi udzu wambiri. Ikhoza kulepheretsa mphamvu ya chithokomiro kukatenga ayodini m'magazi.
Iodini ndi nyumba yomanga mahomoni a chithokomiro. Mankhwala otsika a ayodini, ndi / kapena kutentha kwa gland kukatenga ayodini kungathandize kuti chithokomiro chisatulutse mahomoni otere, omwe amachititsa kuti chithokomiro chisawonongeke, kapena hypothyroidism.
Hypyroidroidism ikhoza kupangitsa kulemera, kutopa, kupsinjika maganizo, kusabereka, kuperewera kwa amayi, komanso kumayesedwa ngati chiopsezo cha matenda a mtima. Ana a amayi omwe ali ndi hypothyroid ali pangozi yowonjezereka ya mavuto a chidziwitso ndi chitukuko, kapena, pa milandu yovuta kwambiri, cretinism ndi zilema zobereka.
Kafukufuku wa CDC anayang'ana amuna ndi akazi 2,299, omwe ali ndi zaka 12 kapena kuposerapo, omwe adachita nawo kafukufuku wawo wa National Health and Nutrition Examination Research (NHANES).
Anayesa kuchuluka kwa mitsempha ya mkodzo, pamodzi ndi mahomoni otchedwa thyroxine (T4) ndi mahomoni otulutsa chithokomiro (TSH) m'magazi. Zimene ofufuza adapeza ndizokuti kukhalapo kwa perchlorate kunali kutsogolera mahomoni a chithokomiro kwa amayi, koma osati amuna.
Ofufuzawa adalankhula za amayi omwe ali ndi makina apamwamba kwambiri a ayodini motsatira gulu lochepa la ayodini. Amayi omwe ali ndi mavitamini apamwamba kwambiri, amapeza kugwirizana pang'ono pakati pa zigawo za TSH. Koma m'mayi apansi a ayodini, panali kugwirizana kwakukulu pakati pa maonekedwe a TSH ndi a T4 otsika, akusonyeza hypothyroidism.
Azimayi omwe ali ndi pakati ali pachiopsezo chachikulu chifukwa chakuti mimba yayamba kale kuyambitsa chithokomiro, ndipo chithandizo cha chithokomiro chokwanira n'chofunikira kuti asunge mimba komanso kupeŵa mavuto a chidziwitso kapena chitukuko mwa mwanayo. Azimayi omwe ali ndi kachilombo kakang'ono kakang'ono kamene amakhala ndi chiopsezo chachikulu chifukwa zotsatira zake zowonjezereka zimakhala zovuta kwambiri kuposa zomwe zilipo kale.
Malingana ndi CDC:
Amayi makumi atatu ndi asanu ndi limodzi pa 100 aliwonse a ku US ali ndi ayodini amadzimadzi osachepera 100 μg / L, omwe anali adiresi ya m'munsi yomwe amagwiritsidwa ntchito pophunzira. Kuyang'ana anthu omwe ali ndi mavitamini apansi, komanso amayi omwe ali ndi mimba, komanso omwe ali ndi borderline hypothyroid kale, bungwe la Environmental Working Group linanena kuti pafupifupi amayi okwana 44 miliyoni a ku America ali ndi chiopsezo chochulukirapo.
Kodi Mafuta Ambiri Ambiri Angakhale Ngoopsa Motani?
Malingana ndi CDC, mlingo wamkati wa mankhwala omwe amapezeka mu mkodzo unali 2.9 micrograms pa lita imodzi (microgram ya lita imodzi ndi yofanana ndi gawo limodzi pa biliyoni). Pakakhala mlingo wokwanira pafupifupi lita imodzi ndi theka patsiku, izi zimamasulira pafupifupi 5 micrograms za perchlorate tsiku lililonse. Ngakhalenso pamtunda wotsikirapo, pakhala mavuto omwe anawoneka pa chithokomiro. Komabe, mlingo wa "dose wotetezeka" wa federal, komabe, pafupifupi nthawi khumi izi.
Malingana ndi Environmental Working Group, CDC yapeza kuti kuchuluka kwa madzi m'munsi mwa madzi osachepera matatu atatu biliyoni (ppb) -kutha kwa supuni imodzi yamadzi m'madzi osambira olimpiki-kungakhudze thanzi la amayi.
Kodi Mungatani?
Mwamwayi, pa ogula malonda, ndi zovuta kwambiri kuti tipewe kuyendayenda, monga momwe zikufalikira mu chakudya ndi madzi. Mwachitsanzo:
- Phunziro lina la Environmental Working Group (EWG) linapezekanso m'zinthu zoposa theka la zitsanzo za letesi yausiku.
- Kafukufuku wina wa EWG anapeza zowonongeka mu 31 peresenti 32 za mkaka ku California
- Dipatimenti ya Chakudya ndi Ulimi ku California inapezeka m'mabuku 32 mwa mkaka 32
- Malingana ndi mayesero omwe amachitidwa mu lamulo la EPA losavomerezeka loyang'anitsitsa, magulu okwana 160 oyendetsera madzi m'mayiko 22 ali oipitsidwa ndi oyendayenda
- Mafuta a perchlorate amapezeka mu zokolola ndi zochokera kunja, zomwe zimapezeka nthawi zambiri mu malalanje, mphesa, raspberries, apricots, mavwende, letesi, tomato, basil, kale, sipinachi, ndi katsitsumzukwa.
- Kwenikweni, malinga ndi CDC, 69 peresenti ya 1,090 zitsanzo za zakudya ndi zakumwa zoledzeretsedwa zinayesedwa zinali zowonongeka.
Malingana ndi CDC, kufotokoza kwafala kwa madzi ndi chakudya kumatanthawuza kuti dziko la America liri ndi magawo asanu ndi theka pa biliyoni.
Kuti muteteze chithokomiro chanu, mukhoza kutsimikiza kuti simuli mmodzi mwa amayi anayi mwa khumi ndi khumi omwe ali ndi kusowa kwa ayodini. Multivitamin yabwino tsiku ndi tsiku ndi ayodini ikhoza kutsimikizira kuti mukupeza ayodini yomwe mukufunikira. Koma, kumbukirani, ngati muli mmodzi mwa anthu omwe alibe ayodini, owonjezera ayodini akhoza kukulirakulira komanso kuwononga kwambiri hypothyroidism ndi ma chithokomiro.
Iyi ndi nkhani yomwe imayitanitsa anthu. Mwachitsanzo, pamtundu wa dziko, palibe madzi omwe amamwa madzi omwa. Utsogoleri wadziko wokha ndiwo utsogoleri wa FDA womwe ukusonyeza kuti kuyeretsa kumachitika pa mlingo wa 24.5 ppb. Komiti ya uphungu wodalirika yaumoyo wa ana yatsutsa mwambo umenewu, komabe chenjezo lomwe lingayambitse kuwonetsetsa komwe kumayambitsa vuto la neurodevelopmental kwa makanda ndi ana.
Pakati pa boma, dziko lokhalo lomwe liri ndi muyeso wa madzi akumwa ndi Massachusetts, omwe anaika miyezo yawo pa magawo awiri biliyoni mu July 2006. Mu Oktoba 2006, California ndi New Jersey zinali kulingalira miyezo ya 6 ppb ndi asanu ppb .
Lankhulani ndi aphungu anu a boma ndikuwalimbikitsa kuti azitsatira miyezo yoyenera ya madzi anu. Ndipo pempherani aphungu anu a boma kuti azitsatira mfundo za dziko. EWG imalimbikitsa kuti boma la boma likhazikitse miyezo ya madzi osamwa yosachepera 0,1 magawo biliyoni a perchlorate.
Komanso, funsani akuluakulu a boma kuti azitsatira njira zowonongeka zankhondo ndi zomera zowonongeka. Kuyeretsa kovomerezeka kwa malo oyeretsa omwe alipo ndikukonzekera kwa madzi omwe akuwonongeka ndiwo njira zokha zothandizira kuchepa kwa magazi.
Renee Sharp, katswiri wa EWG yemwe adaphunzira za mankhwala, adalemba mwachidule kuti:
Pentagon ndi makampani odzitetezera, omwe ali ndi udindo wambiri pa madzi akumwa, akhala akutsutsana kwambiri ndi malamulo a federal, akutsutsa kuti phokosolo silinapangitse anthu odwala bwino. Phunziro latsopanoli likuwonetsa kuti ngakhale magulu ang'onoang'ono ozungulira m'madzi kapena chakudya amatha kukhala ndi zotsatira zowonongeka kwa amayi. Sitingathe kunyalanyaza vuto lalikulu la thanzi la anthu.
> Zotsatira:
> Blount, Benjamin C. ndi. al. "Health Health Perspectives: Perchlorate ya Urinary ndi Matenda a Chithokomiro Achichepere ndi Amuna Achikulire ndi Akazi Okhala ku United States," Environmental Health Perspectives Branch (EHPB), National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health ndi Huduma zaumunthu, Zinalembedwa pa October 5, 2006, Online
> "Miliyoni 44 Azimayi Oopsya a Kutha kwa Chithokomiro Kuchokera ku Rocket Fuel Chemical," Environmental Working Group Press Release.
> Ntchito Yogwirira Ntchito Yowunika