Akwai damuwa sosai tsakanin masana kimiyya da jama'a game da kayan haɓakar haɓakar haɓakar abubuwa masu sinadarai masu yawa na robobi, gami da waɗanda aka samo a cikin hakoran haƙori. Gudun Bis-GMA da aka saba amfani da shi yana amfani da ɗayan mafi rikici cikin waɗannan, Bisphenol-A (BPA). Masu haɗin keɓaɓɓun masana'antun suna da'awar cewa babu wani BPA da ba a taɓa aiki ba a cikin ƙwayoyin haƙori, kuma yana ɗaukar yanayin zafi mai yawa - digiri ɗari-ɗari - don yantar da BPA kyauta. Sauran masu sukar suna cewa, a zahiri, alaƙar ester a cikin resins suna ƙarƙashin hydrolysis, kuma ana iya 'yantar da BPA da yawa da za'a iya auna shi. Mun san cewa hatimin hakori na iya bambanta da adadin BPA da suke zuba (reference), amma a halin yanzu babu wani kyakkyawan bincike a cikin vitro game da yadda yawancin BPA suka sami 'yanci ta manyan nau'ikan kayan maye. Hakanan, mun san cewa duniya cike take da sinadarai na filastik, kuma kowane abu mai rai a duniya yana da matakin ma'auni na BPA. Ba mu san gaske ba idan adadin BPA da aka fitar daga hakoran haƙori ya isa ya ɗaga fallasar mutum sama da matakin asalin muhalli, ko kuma idan ba shi da muhimmanci. Abubuwan da aka haɗe sun bayyana yawancin batutuwan da ake bincika.
A cikin 2008, IAOMT ya gudanar da binciken dakin gwaje-gwaje game da sakin BPA daga keɓaɓɓun hakoran haƙori na haƙƙin kasuwanci a ƙarƙashin yanayin ilimin lissafi: 37º C, pH 7.0 da pH 5.5. Abun takaici, saboda sauye-sauye a harkar gudanarwa a dakin binciken jami'a inda aka gudanar da gwajin, dole ne mu daina aiki da wuri fiye da yadda aka tsara, kuma bayanan da muka tattara kawai za'a iya daukar su a matsayin na farko. An sami adadin BPA mai aunawa yana leaching daga mahaɗan. Sun kasance a cikin ƙananan sassan-kowane biliyan bayan sa'o'i 24, a kan tsari na dubu ɗaya daga cikin sanannun matsakaicin tallatawar yau da kullun ga manya a cikin ƙasashe masu ci gaban masana'antu. An gabatar da waɗannan sakamakon a taron IAOMT a San Antonio a cikin Maris 2009, kuma ana samun cikakken laccar don kallo ta danna nan. An haɗe nunin faifai mai ƙarfi, mai taken “San Antonio BPA.” Sakamako don samfurin hadadden mutum yana kan faifai 22 na wannan gabatarwar.
A cikin 2011, kamfanin na IAOMT ya gudanar da wani karamin aiki tare da dakin gwaje-gwaje na Plastipure, Inc. a Austin, Texas, don ganin ko akwai wata alama ta aikin isrogen daga mahaɗan haƙori a ƙarƙashin yanayin ilimin lissafi. Mun nemi aikin estrogen ba musamman daga BPA ba, amma daga kowane nau'in sunadarai da yawa waɗanda zasu iya yin kwaikwayon estrogens. Bugu da ƙari, saboda dalilai waɗanda ba za mu iya sarrafawa ba, wannan ɗakin binciken ma ya rufe, kafin mu faɗaɗa karatun zuwa matakin bugawa. Amma a matakin karatun matukin jirgi da muka kammala, ba a sami aikin estrogenic ba, a karkashin yanayin ilimin yanayin zafin jiki da pH.
Labarin “BPA Review” yana wakiltar ra'ayin da aka samo daga daidaitaccen toxicology, wanda muka dogara dashi a baya. Wannan labarin yana nazarin wallafe-wallafen akan fallasawa tare da bayanan ƙofar mai guba don bishpenol-A (BPA) daga haɗin haƙori da na sealants, kuma ya tabbatar da cewa sanannen tasirin yana ƙasa da sananniyar ƙwayar mai guba.
Koyaya, batun yiwuwar aikin hormonal na ƙananan ƙananan allurai na BPA da sauran sanannun kwayoyi masu kwazo, a cikin ɓangarorin da ke tsakanin biliyan biliyan da ƙasa, suna gabatar da matsalolin da ba a tattauna su a cikin yanayin toxicology na yau da kullun ba. A cikin daidaitaccen tsari, ba a auna sakamako masu ƙarancin ƙarfi, amma ana faɗi ta hanyar haɓakawa daga manyan gwaje-gwajen. Masu ba da shawara game da karancin magani suna cewa karancin bayani yana da wani yanayin aiki gaba daya - “rushewar endocrin.” Ta hanyar kara dabara ta al'ada, mai dogaro da kwayoyin halitta, matakan ci gaba a cikin dabbobin tayi, za a iya samun canjin canji na dindindin. Wadannan sun hada da fadada prostate da kuma saurin kamuwa da cutar kansa a rayuwa.
Duba Labarai:
