{{0} ŵanthu kuti ŵa ku China ŵakutumizga vyakusazgapo vya labala ku United States na umo vinthu vingakhwaskira mitengo .
1.1 Anti-aging wovwiri TMQ wakutumizga ku United States .
China ndiyo yikuguliska chomene vinthu vyakupangiska kuti ŵanthu ŵaŵe na mwaŵi wa kuguliska vinthu, chomenechomene chiŵelengero cha awo ŵakuchimbira na awo ŵakulimbana na uchekuru mu vyakuguliska vya ku vyaru vinyake, vili pachanya pa 50% . Pa mndandanda wa misonkho yinyake iyo yikayambika na United States na China, vyakusazgapo vya raba ivyo vikukhwaskana chomene na awo ŵakulimbana na uchekuru 38123100 mu vyakusazgapo vya labala, ndiko kuti kusakanizga kwa 2,2,{7}}trimethyl-1,2-didroquinoline (TMQ) oligomer.
Pasono, Japan, United States, South Korea, Thailand, Indonesia ni vyaru ivyo vikuguliska vinthu vyakususkana na uchekuru TMQ. Mu vyaka vyasonosono apa, United States yasazgirako chiŵelengero chake cha kutumizga ku vyaru vinyake . Mu 2017, kutumizga TMQ yakulimbana na uchekuru ku United States yikaŵa 2417.1 matani, kuŵika pa malo ghachisanu {. Mu 2018, anti-antra- ejenti TMQ iyo yikatumizgika ku United States yikaŵa pa malo ghachiŵiri pa 5898.9 matani. Mu kotala yakwamba ya 2019, TMQ, uyo wakulimbana na uchekuru uyo wakatumizgika ku United States, wakaŵikika pakwamba na matani gha 1997.5.
Kufuma mu Malichi 2018, buku lakuguliska TMQ yakulimbana na uchekuru, TMQ yalongora kuti yikukura chomene, iyo yizamukhalilira mpaka pa kotala yakwamba ya 2019. Kuumaliro wa Malichi 2018, United States yikapharazga kuti ŵanthu ŵanandi ŵakukwera pa kuguliska vinthu kufuma ku China mwakuyana na "301 kufufuza" {{ {{ {{ {ren}}
Mu mazgu ghanyake, kufuma apo US yikapharazga kuti yikupeleka msonkho pa kuguliska vinthu vya ku China, kutumizga ku vyaru vinyake kwa TMQ yakulimbana na uchekuru kwasazgikira, kweni na vinandi yayi nga ni chaka chajumphapo {{{ 1}} Kweni, mtengo wakukwana wa TMQ ku vyaru vinyake ku vyaru vinyake ku United States uchali uchoko chomene pakuyaniska na unandi wose wa awo ŵakulimbana na uchekuru uwo ukuguliskika ku United States {{nthengwa) {{nthengwa)}}}}}}}}}}us}}}}}}}}}}?}}}}}}}}}} khumi wa ulwilwi walo wa ku United States wakuguliskika ku United States {{{{{{{{nthengwa).}}}}}}}}}}}}yo ndiyo mtengo wake.
1.2 Kukhuŵara kwa TMQ yakulimbana na uchekuru pa kutumizga ku US .
Kufuma mu 2014 m’paka 2018, chiŵelengero cha kuguliska awo ŵakulimbana na ŵanyawo ku United States mu chigaŵa chose cha kuguliska vinthu vyakususka vya raba, chikuchepa . Kufuma pa iwo, unandi wose wa kuguliska kwa rabara wakulimbana na uchekuru mu 2018 ni matani 234500, ndipo chiŵelengero chose cha kutumizga anti-agest agent ku United States ni matani 25400, ndipo chikulongosora 10 . 8%.
Ivyo vyayowoyeka pacanya apa ivyo vyazunulika pacanya apa vya TMQ yakulimbana na ucekuru ku United States mu 2018 vikulembeka pa 23.2% ndipo 2. 5% ya buku lose lakutumizga ku vyaru vinyake vyakulimbana na uchekuru ku United States. Mu mazgu ghanyake, nangauli kutumizga TMQ yakulimbana na uchekuru ku United States kwasazgikira chomene, kweni kukuwonekaso kuti kuli na chiŵelengero chichoko mu chiŵelengero chose cha anti-agent ndipo chikukhwaska vichoko waka pa kutumizga kwa wovwiri wose wakulimbana na uchekuru.