{"id":24367,"date":"2022-01-12T14:51:48","date_gmt":"2022-01-12T11:51:48","guid":{"rendered":"https:\/\/zdmaa.com\/why-are-cancer-cluster-causes-so-hard-to-prove\/"},"modified":"2022-01-13T02:21:44","modified_gmt":"2022-01-12T23:21:44","slug":"why-are-cancer-cluster-causes-so-hard-to-prove","status":"publish","type":"post","link":"https:\/\/zdmaa.com\/tr\/why-are-cancer-cluster-causes-so-hard-to-prove\/","title":{"rendered":"Kanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor?"},"content":{"rendered":"

Kanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor?<\/span><\/span><\/span><\/span><\/p>\n

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Ben<\/span><\/span><\/span><\/span><\/span> s\u0131k s\u0131k, size b\u0131rakabilir ba\u015fl\u0131k kar\u0131\u015ft\u0131. <\/span>30 Nisan’daki <\/span><\/span><\/span><\/span>Washington Post<\/span><\/span><\/span><\/span><\/em><\/em> haberinde oldu\u011fu gibi, \u00fc\u00e7\u00fc arkada\u015f olan 18 ki\u015fi, hepsi Kuzey Carolina ve Alabama’da nadir g\u00f6r\u00fclen bir g\u00f6z kanseri t\u00fcr\u00fc olan g\u00f6z melanomu te\u015fhisi konan iki yerde yo\u011funla\u015ft\u0131. <\/span>\u0130lgililer, kanserlerinin ortak bir ba\u011flant\u0131s\u0131 olmas\u0131 gerekti\u011fine inan\u0131yor, ancak soru\u015fturma belirli bir neden veya vakalar\u0131 birbirine ba\u011flayan bir kaynak bulamad\u0131. <\/span>Haber bir\u00e7ok ki\u015fiyi \u015fa\u015fk\u0131na \u00e7evirdi. <\/span>North Carolina County Komiseri Pat Kotham, “Burada ortak bir nokta olmad\u0131\u011f\u0131na inanmak zor” diyor.<\/span><\/span><\/span><\/span><\/p>\n

Ayn\u0131 b\u00f6lgede ya\u015fayan, ayn\u0131 i\u015fyerinde \u00e7al\u0131\u015fan veya ayn\u0131 spor tak\u0131m\u0131nda oynayan ki\u015filerin, \u00f6zellikle de ayn\u0131 kanser t\u00fcr\u00fcyse, kansere yakalanmas\u0131 basit bir sebep sonu\u00e7 durumu gibi g\u00f6r\u00fcnebilir. <\/span>Baz\u0131lar\u0131 su\u00e7un kirlili\u011fin oldu\u011funu varsayabilir. <\/span>Di\u011ferleri, zeminde veya duvarlarda toksinler oldu\u011fundan \u015f\u00fcphelenebilir. <\/span>Ancak bir ba\u011flant\u0131y\u0131 kan\u0131tlamak imkans\u0131z de\u011filse de genellikle zordur. <\/span>Asl\u0131nda, her y\u0131l federal ve eyalet sa\u011fl\u0131k yetkililerine bildirilen 1000’den fazla \u015f\u00fcpheli kanser k\u00fcmesinden \u00e7ok az\u0131n\u0131n, ABD Hastal\u0131k Kontrol ve \u00d6nleme Merkezleri (CDC) taraf\u0131ndan tan\u0131mlanan kanser k\u00fcmeleri oldu\u011fu do\u011fruland\u0131. <\/span>ve Ulusal Kanser Enstit\u00fcs\u00fc (NCI). <\/span>“Belirli bir co\u011frafi b\u00f6lgede belirli bir zaman diliminde bir grup insanda meydana gelen beklenenden fazla say\u0131da kanser vakas\u0131” olarak tan\u0131mlan\u0131r.<\/span><\/span><\/p>\n

Gruplar\u0131 tan\u0131mlay\u0131n: karma\u015f\u0131k<\/span><\/span><\/h2>\n

Bir \u00f6rnek, g\u00f6r\u00fcn\u00fc\u015fte bariz olan ba\u011flant\u0131lar do\u011frulanamad\u0131\u011f\u0131nda ortaya \u00e7\u0131kan uzun s\u00fcreli sorular etraf\u0131ndaki kafa kar\u0131\u015f\u0131kl\u0131\u011f\u0131n\u0131 g\u00f6stermektedir. <\/span>Ge\u00e7en yaz d\u00fcnya \u015fampiyonu Darren Doulton, agresif bir beyin kanseri t\u00fcr\u00fc olan glioblastomdan \u00f6len d\u00f6rd\u00fcnc\u00fc Philadelphia Phillies oyuncusu oldu. <\/span>Pek \u00e7ok insan, \u00f6zellikle eski beyzbol oyuncular\u0131, beyin kanseri ve beyzbol aras\u0131nda veya en az\u0131ndan beyin kanseri ile Phillies’in Ev dedi\u011fi Gaziler Stadyumu gibi stadyumlarda kullan\u0131lan suni \u00e7imin eski versiyonlar\u0131 aras\u0131nda net bir ba\u011flant\u0131 gibi g\u00f6r\u00fcnen \u015feyi merak ediyor. <\/span>1971’den 2003’e. Ancak ara\u015ft\u0131rmac\u0131lar, ara\u015ft\u0131rmalar\u0131n\u0131n kanserlerin tek bir ortak kaynaktan kaynakland\u0131\u011f\u0131 inanc\u0131n\u0131 destekleyecek yeterli kan\u0131t ortaya koymad\u0131\u011f\u0131n\u0131 s\u00f6yleyerek kitlenin b\u00fcy\u00fck olas\u0131l\u0131kla bir tesad\u00fcf oldu\u011fundan \u015f\u00fcpheleniyorlar. <\/span>\u00d6l\u00fcmlerin genel pop\u00fclasyonda meydana gelen kanser kal\u0131plar\u0131yla orant\u0131l\u0131 oldu\u011funu eklediler:<\/span><\/span><\/p>\n

Ara\u015ft\u0131rma bulgular\u0131 hayal k\u0131r\u0131kl\u0131\u011f\u0131 yaratsa da, kanser gruplar\u0131 d\u00fcnyas\u0131nda ola\u011fand\u0131\u015f\u0131 de\u011filler. <\/span>Baz\u0131 durumlarda, hastal\u0131k \u00e7ok yayg\u0131n oldu\u011fu i\u00e7in kanser k\u00fcmeleri normaldir, belki de bir\u00e7ok ki\u015finin d\u00fc\u015f\u00fcnd\u00fc\u011f\u00fcnden daha yayg\u0131nd\u0131r. <\/span>Amerika Birle\u015fik Devletleri’nde, her \u00fc\u00e7 ki\u015fiden biri ya\u015famlar\u0131 boyunca kanser geli\u015ftirecektir. <\/span>Bilardo oyununda bir s\u00fcr\u00fc topu k\u0131ran bir bilardo sopas\u0131 d\u00fc\u015f\u00fcn\u00fcn. <\/span>Baz\u0131lar\u0131 masan\u0131n en uzak k\u00f6\u015felerine inebilir, di\u011ferleri ise bir araya toplanabilir. <\/span>Kom\u015fular veya kanserli i\u015f arkada\u015flar\u0131 gibi baz\u0131 uzmanlar bunun tamamen rastgele oldu\u011funu s\u00f6yl\u00fcyor.<\/span><\/span><\/p>\n

Kanser, her biri kendi risk fakt\u00f6rleri, semptomlar\u0131 ve nedenleri olan 100’den fazla farkl\u0131 t\u00fcre ayr\u0131lm\u0131\u015f karma\u015f\u0131k bir hastal\u0131kt\u0131r. <\/span>Hastal\u0131\u011f\u0131n geli\u015fmesi genellikle y\u0131llar hatta on y\u0131llar al\u0131r. <\/span>K\u00fcme testleri aray\u0131\u015f\u0131n\u0131 zorla\u015ft\u0131ran bir di\u011fer fakt\u00f6r: \u0130nsanlar her zaman ayn\u0131 yerde kalmazlar.<\/span><\/span><\/p>\n

“Kanser k\u00fcmeleri olu\u015fturman\u0131n zorlu\u011funun nedenleri \u00e7oktur ve rastgele \u015fans olas\u0131l\u0131\u011f\u0131n\u0131, maruz kalma s\u00fcresini ve b\u00f6lgeye farkl\u0131 insanlar\u0131n girip \u00e7\u0131kma olas\u0131l\u0131\u011f\u0131n\u0131 veya farkl\u0131 miktarlarda maruz kalma olas\u0131l\u0131\u011f\u0131n\u0131 i\u00e7erir.” <\/span><\/span>– Pamela Creeley, ABD Merkezleri Kanser Tedavisi <\/span><\/span>\u00ae<\/span><\/span><\/sup> (CTCA) <\/span>T\u0131bbi Onkoloji Departman\u0131 Direkt\u00f6r\u00fc<\/span><\/span><\/em><\/p><\/blockquote>\n

Hastanemizde bir onkolog ve hematolog olan MD Asha Karibut, bu nedenle, ara\u015ft\u0131rmac\u0131lar\u0131n mesken topluluklar\u0131ndan ziyade i\u015fyerinde varl\u0131klar\u0131n\u0131 do\u011frulayabilecekleri \u00e7ok say\u0131da kanser grubu var, \u00e7\u00fcnk\u00fc test etmek genellikle daha kolay, diyor. <\/span>Tulsa’da. <\/span>Zaman i\u00e7inde ayn\u0131 duman\u0131 soluyan, ayn\u0131 musluktan i\u00e7en veya ayn\u0131 maddeyi kullanan i\u015f arkada\u015flar\u0131, kaynak daha k\u00fc\u00e7\u00fck bir alanla s\u0131n\u0131rland\u0131r\u0131l\u0131r ve do\u011frulanmas\u0131 daha kolayd\u0131r. <\/span>‘Zaman i\u00e7inde’ y\u00f6n\u00fc, hem kanserin olu\u015fma \u015fekli hem de gruplar aras\u0131ndaki ili\u015fkiyi do\u011frulamak i\u00e7in ba\u015fka bir anahtard\u0131r. <\/span>\u00c7evre ile ilgili kanserler, en s\u0131k olarak, insanlar (kanser gruplar\u0131 s\u00f6z konusu oldu\u011funda, ayn\u0131 insan grubu) y\u00fcksek ve tekrarlayan dozlarda kanserojenlere maruz kald\u0131\u011f\u0131nda ortaya \u00e7\u0131kar. <\/span>\u00d6rne\u011fin, 1960’larda kanser k\u00fcmelerini inceleyen ara\u015ft\u0131rmac\u0131lar, malign mezotelyoma ile imalat, end\u00fcstri ve t\u00fcketici \u00fcr\u00fcnlerinde yayg\u0131n olarak kullan\u0131lan lifli bir mineral olan asbest aras\u0131nda bir ba\u011flant\u0131 ke\u015ffettiler. <\/span>Daha sonra, 1970’lerin ba\u015f\u0131nda, ayn\u0131 kimyasal tesisteki i\u015f\u00e7ilere karaci\u011fer hemanjiyosarkomu te\u015fhisi konuldu\u011funda, ara\u015ft\u0131rmac\u0131lar, nadir g\u00f6r\u00fclen kanserin, i\u015f\u00e7ilerin vinil klor\u00fcre maruz kalmas\u0131ndan kaynakland\u0131\u011f\u0131n\u0131 belirlediler; bu, art\u0131k bildi\u011finiz gibi, hastal\u0131\u011f\u0131n\u0131z i\u00e7in \u00f6nemli bir risk fakt\u00f6r\u00fcd\u00fcr. <\/span>.<\/span><\/span><\/p>\n

Alakas\u0131z fakt\u00f6rler resmi g\u00f6lgeliyor<\/span><\/span><\/h2>\n

Sigara, obezite ve ya\u015f gibi di\u011fer fakt\u00f6rler kanser gruplar\u0131 i\u00e7in test yap\u0131lmas\u0131n\u0131 zorla\u015ft\u0131rabilir. <\/span>Dr. Creeley, “Sigara veya obezite gibi de\u011fi\u015fkenler, asl\u0131nda mevcut olmad\u0131klar\u0131nda bir dizi kanserin geli\u015fimine katk\u0131da bulunabilir” diyor. <\/span>Bir kanserojene maruz kalan t\u00fcm insanlar kanser geli\u015ftirmez (baz\u0131 insanlar genlerine g\u00f6re daha fazla veya daha az olas\u0131d\u0131r), di\u011ferleri y\u00fcksek riskli toksinlere maruz kalmasalar bile ayn\u0131 kanseri geli\u015ftirir. <\/span>Sadece bir mahallede kanserojen ajanlar bulunsa bile, baz\u0131 sakinler bu maddeye maruz kalabilirken di\u011ferleri olmayabilir.<\/span><\/span><\/p>\n

\u00d6rne\u011fin, beyin kanserinden \u00f6len eski Velez oyuncular\u0131n\u0131n hepsi Gaziler Stad\u0131’nda birlikte oynamad\u0131 veya ayn\u0131 s\u00fcre tak\u0131mda kalmad\u0131. <\/span>Philadelphia Eagles da sahada oynad\u0131 ve antrenman yapt\u0131, ancak Ulusal Futbol Ligi, oyuncular\u0131 aras\u0131nda ola\u011fand\u0131\u015f\u0131 bir beyin kanseri vakas\u0131 bildirmedi. <\/span>CTCA ayakta tedavi b\u00f6l\u00fcm\u00fc ba\u015fkan\u0131 Anthony Berry, \u201cBir kanser pop\u00fclasyonunun varl\u0131\u011f\u0131n\u0131 bilimsel olarak kan\u0131tlamak genellikle zordur\u201d diyor. <\/span><\/span>\u00ae<\/span><\/span><\/sup> . <\/span>“Kanser k\u00fcmesinin orada olmas\u0131 \u00e7ok muhtemel. Bunu kan\u0131tlayamazs\u0131n\u0131z.”<\/span><\/span><\/p>\n

Ger\u00e7ek bir kanser grubunu do\u011frulamak i\u00e7in belirli kriterlerin kar\u015f\u0131lanmas\u0131 gerekir:<\/span><\/span><\/p>\n

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  • Belirli bir pop\u00fclasyonda beklenenden daha fazla say\u0131da kanser vakas\u0131 meydana gelmelidir.<\/span><\/span><\/li>\n
  • Kanserler, ayn\u0131 kanser t\u00fcr\u00fcn\u00fc veya ayn\u0131 nedene sahip farkl\u0131 kanser t\u00fcrlerini i\u00e7ermelidir.<\/span><\/span><\/li>\n
  • T\u00fcm kanserler birincil kanser olmal\u0131d\u0131r, bu da hastal\u0131\u011f\u0131n yay\u0131lm\u0131\u015f olabilece\u011fi organlarda de\u011fil, v\u00fccudun ayn\u0131 b\u00f6lgesinde ba\u015flad\u0131\u011f\u0131 anlam\u0131na gelir.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n

    Sa\u011fl\u0131k g\u00f6revlileri bir kanser grubunu ara\u015ft\u0131rmak i\u00e7in att\u0131klar\u0131 bir dizi belirli ad\u0131ma dayanarak, a\u015fa\u011f\u0131dakiler dahil olmak \u00fczere bilgi toplarlar:<\/span><\/span><\/span><\/span><\/p>\n

      \n
    • Vakalar\u0131n meydana geldi\u011fi co\u011frafi b\u00f6lge<\/span><\/span><\/span><\/span><\/li>\n
    • \u0130lgili sorunlar\u0131n say\u0131s\u0131<\/span><\/span><\/span><\/span><\/li>\n
    • Etkilenen kanser t\u00fcr\u00fc<\/span><\/span><\/span><\/span><\/li>\n
    • Etkilenen ki\u015filerle ilgili ya\u015f, cinsiyet, etnik k\u00f6ken ve meslek gibi demografik bilgiler.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n

      Yetkililer bazen kanserin a\u015fa\u011f\u0131daki durumlarda oldu\u011fu gibi daha fazla ara\u015ft\u0131rmaya gerek olmad\u0131\u011f\u0131na karar verirler:<\/span><\/span><\/span><\/span><\/p>\n

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      • \u00d6zellikle kanserlerin g\u00fc\u00e7l\u00fc bir genetik ba\u011fa sahip oldu\u011fu biliniyorsa, kanla ilgili aile \u00fcyeleri aras\u0131nda bulunurlar.<\/span><\/span><\/span><\/span><\/li>\n
      • Ayn\u0131 fakt\u00f6rlerin neden olmad\u0131\u011f\u0131 farkl\u0131 t\u00fcrleri vard\u0131r.<\/span><\/span><\/span><\/span><\/li>\n
      • Ayn\u0131 t\u00fcrdendirler, ancak yaln\u0131zca az say\u0131da insanda, \u00f6zellikle de bu kanser t\u00fcr\u00fcn\u00fc geli\u015ftirme riski y\u00fcksek olanlarda g\u00f6r\u00fcl\u00fcrler.<\/span><\/span><\/span><\/span><\/li>\n
      • Maruziyetin meydana geldi\u011fi s\u0131rada ayn\u0131 yerde ya\u015famayan insanlar aras\u0131nda meydana gelirler.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n

        Daha fazla ara\u015ft\u0131rmaya ihtiya\u00e7 duyulursa, yetkililer, ayn\u0131 ya\u015f ve cinsiyetteki bir grup gibi kanser n\u00fcfus say\u0131mlar\u0131ndan ve kay\u0131tlar\u0131ndan al\u0131nan benzer verilerle toplanan bilgileri kar\u015f\u0131la\u015ft\u0131r\u0131r. <\/span>Yetkililerin, co\u011frafi s\u0131n\u0131rlar\u0131 ve kimlerin etkilenebilece\u011fi gibi bir grubun temel unsurlar\u0131n\u0131 belirlerken verdi\u011fi ki\u015fisel kararlar\u0131 hesaba katt\u0131\u011f\u0131n\u0131zda, resim daha da kafa kar\u0131\u015ft\u0131r\u0131c\u0131 hale geliyor. <\/span>Bu, baz\u0131 durumlarda iki sa\u011fl\u0131k departman\u0131n\u0131n kanserli bir kitlenin ger\u00e7ek mi yoksa tesad\u00fcf m\u00fc oldu\u011fu konusunda farkl\u0131 sonu\u00e7lara varabilece\u011fi anlam\u0131na gelir.<\/span><\/span><\/p>\n

        2015 y\u0131l\u0131nda, k\u00fc\u00e7\u00fck Pelius Creek kasabas\u0131nda \u015f\u00fcpheli bir grup beyin kanseri rapor edildi\u011finde, Kuzey Karolina Merkez Kanser Kay\u0131t Merkezi, k\u00f6m\u00fcr k\u00fcl\u00fc depolama tesislerine sahip il\u00e7elerdeki kanser vakalar\u0131n\u0131 ara\u015ft\u0131rd\u0131. <\/span>\u015eehir sakinlerinin \u00e7o\u011fu i\u00e7me suyu i\u00e7in kuyulara g\u00fcveniyor ve bir\u00e7o\u011fu Duke Energy’nin yak\u0131ndaki k\u00f6m\u00fcrle \u00e7al\u0131\u015fan elektrik santralinden at\u0131k toplamak i\u00e7in kulland\u0131\u011f\u0131 bir depolama havuzunu su\u00e7luyor. <\/span>Ancak soru\u015fturma, Pelius Creek’teki kanser insidans\u0131n\u0131n eyaletteki di\u011fer benzer b\u00f6lgelerden daha y\u00fcksek oldu\u011funu teyit edemedi. <\/span>Ancak ele\u015ftirmenler, \u00e7al\u0131\u015fman\u0131n il\u00e7e \u00e7ap\u0131ndaki say\u0131lar\u0131 haks\u0131z bir \u015fekilde kulland\u0131\u011f\u0131n\u0131 ve bunun kar\u015f\u0131la\u015ft\u0131rma amac\u0131yla bir k\u00f6m\u00fcr k\u00fcl\u00fc g\u00f6leti yak\u0131n\u0131nda ya\u015fayan kanser hastalar\u0131n\u0131n say\u0131s\u0131n\u0131 do\u011fru bir \u015fekilde yans\u0131tmayabilece\u011fini s\u00f6yl\u00fcyor. <\/span>Aral\u0131k 2017’de, \u00e7evre ve sivil haklar gruplar\u0131, Duke’e dava a\u00e7t\u0131 ve toplulu\u011fun su kayna\u011f\u0131n\u0131 kirletti\u011fini iddia etti. <\/span>Dava halen mahkemede.<\/span><\/span><\/span><\/span><\/p>\n

        Bilim s\u0131n\u0131rl\u0131d\u0131r, ancak daha iyi hale gelir<\/span><\/span><\/h2>\n

        Uzmanlar, kanser pop\u00fclasyonlar\u0131 hakk\u0131nda bir sonuca var\u0131lamamas\u0131 nedeniyle h\u00fcsrana u\u011frayanlar\u0131n bilimin s\u0131n\u0131rlar\u0131n\u0131 da g\u00f6z \u00f6n\u00fcnde bulundurmalar\u0131 gerekti\u011fini s\u00f6yl\u00fcyor. <\/span>M\u00fcfetti\u015fler genellikle ba\u011flant\u0131 kurmak i\u00e7in gerekli kesin kan\u0131tlardan yoksundur. <\/span>\u00d6rne\u011fin, \u00e7o\u011fu ki\u015fi asbestin su\u00e7lu oldu\u011funa inan\u0131yorsa, ancak mineralin t\u00fcm izleri zamanla ortadan kaybolduysa, ara\u015ft\u0131rmac\u0131lar\u0131n g\u00fcvenecek hi\u00e7bir kan\u0131t\u0131 yoktur. <\/span>Veya baz\u0131lar\u0131 kuyu suyunun kanserojenle kirlendi\u011finden \u015f\u00fcphelenirse, ara\u015ft\u0131rmac\u0131lar suyu kimin i\u00e7ti\u011fini ve kimin i\u00e7medi\u011fini s\u00f6yleyemeyebilir. <\/span>\u00c7o\u011fu k\u00fcme ara\u015ft\u0131rmas\u0131n\u0131n az say\u0131da vakay\u0131 i\u00e7ermesine yard\u0131mc\u0131 olmaz, bu da ara\u015ft\u0131rmac\u0131lar\u0131n istatistiksel olarak anlaml\u0131 sonu\u00e7lar \u00e7\u0131karmas\u0131n\u0131 zorla\u015ft\u0131rabilir. <\/span>Dr. Perry, “Rapor edilen bir\u00e7ok kanser kohortu, ara\u015ft\u0131rmac\u0131lar\u0131n beklenen vaka say\u0131s\u0131ndan istatistiksel bir fark oldu\u011funu belirlemelerine izin verecek kadar yeterli vakay\u0131 i\u00e7ermiyor” diyor.<\/span><\/span><\/p>\n

        Ancak uzmanlar, teknolojinin resmin en az\u0131ndan bir k\u0131sm\u0131n\u0131 a\u00e7\u0131klamaya yard\u0131mc\u0131 oldu\u011funu s\u00f6yl\u00fcyor. <\/span>Son y\u0131llarda, bilim adamlar\u0131 maruziyeti \u00f6l\u00e7mek i\u00e7in daha hassas ara\u00e7lar geli\u015ftirdiler ve Hastal\u0131k Kontrol Merkezleri (CDC) ve Ulusal Kanser Enstit\u00fcs\u00fc (NCI) art\u0131k gruplar\u0131n istatistiksel olarak anlaml\u0131 olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in co\u011frafi kanser verilerini analiz etmek i\u00e7in tasarlanm\u0131\u015f yaz\u0131l\u0131mlar kullan\u0131yor. <\/span>Kanser insidans\u0131 i\u00e7in bir temel olu\u015fturmaya ve anormallikleri daha kolay tespit etmeye yard\u0131mc\u0131 olan Ulusal Kanser Kay\u0131tlar\u0131, toplu ara\u015ft\u0131rmalarda ara\u015ft\u0131rmac\u0131lar i\u00e7in bir ba\u015fka \u00f6nemli kaynak haline geldi. <\/span>Dr. Creely, “Kanser i\u00e7in bir kohortu test etmede hala bir\u00e7ok zorluk var, ancak bilim ilerlemeye ve epidemiyolojik \u00e7al\u0131\u015fmalar geli\u015fmeye devam ediyor” diyor.<\/span><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        Kanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor? Ben s\u0131k s\u0131k, size b\u0131rakabilir ba\u015fl\u0131k kar\u0131\u015ft\u0131. 30 Nisan’daki Washington Post haberinde oldu\u011fu gibi, \u00fc\u00e7\u00fc arkada\u015f olan 18 ki\u015fi, hepsi Kuzey Carolina ve Alabama’da nadir g\u00f6r\u00fclen bir g\u00f6z kanseri t\u00fcr\u00fc olan g\u00f6z melanomu te\u015fhisi konan iki yerde yo\u011funla\u015ft\u0131. \u0130lgililer, kanserlerinin ortak bir ba\u011flant\u0131s\u0131 olmas\u0131 gerekti\u011fine inan\u0131yor, ancak soru\u015fturma belirli …<\/p>\n","protected":false},"author":1,"featured_media":23315,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-24367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-tr"],"yoast_head":"\nKanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor? - zdmaa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zdmaa.com\/tr\/why-are-cancer-cluster-causes-so-hard-to-prove\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor? - zdmaa\" \/>\n<meta property=\"og:description\" content=\"Kanser k\u00fcmesinin nedenlerini kan\u0131tlamak neden zor? 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