{"id":3208,"date":"2025-10-06T05:52:40","date_gmt":"2025-10-06T05:52:40","guid":{"rendered":"https:\/\/genoks.com.tr\/docs\/maternal-contamination-str-en\/"},"modified":"2026-05-02T05:05:29","modified_gmt":"2026-05-02T05:05:29","password":"","slug":"maternal-contamination-str-en","status":"publish","type":"docs","link":"https:\/\/genoks.com.tr\/en\/docs\/maternal-contamination-str-en\/","title":{"rendered":"Maternal Contamination Test (STR Analysis)"},"content":{"rendered":"

<\/p>\n

Maternal Contamination Test (STR Analysis)<\/strong> verifies that prenatal samples (CVS, amniocytes) are fetal in origin and not contaminated by maternal cells. Uses Short Tandem Repeat (STR) marker comparison between maternal blood and the prenatal sample. Mandatory quality-control step in cytogenetic and molecular prenatal diagnostics; ensures result interpretation is fetal-specific and avoids false-negative findings due to maternal cell admixture.<\/p>\n

<\/p>\n

Maternal Kontaminasyon Testi Nedir ?<\/strong>
\nMaternal kontaminasyon testi, prenatal genetik testler s\u0131ras\u0131nda fetal DNA yerine anne DNA’s\u0131n\u0131n analiz edilmesini \u00f6nlemek i\u00e7in yap\u0131lan bir testtir. Prenatal genetik testleri, bebe\u011fin sa\u011fl\u0131\u011f\u0131 hakk\u0131nda bilgi edinmek i\u00e7in yap\u0131lan testlerdir. Bu testler genellikle amniyosentez veya koryonik villus \u00f6rneklemesi gibi invaziv prosed\u00fcrlerle yap\u0131l\u0131r.<\/p>\n

Ancak, bu testler s\u0131ras\u0131nda anne DNA’s\u0131, fetal DNA ile kar\u0131\u015fabilir ve sonu\u00e7lar\u0131 etkileyebilir. Maternal kontaminasyon testi, prenatal testler s\u0131ras\u0131nda anne DNA’s\u0131n\u0131n fetal DNA’dan ayr\u0131lmas\u0131n\u0131 sa\u011flar. Bu test, anne ve fet\u00fcs\u00fcn DNA profillerini kar\u015f\u0131la\u015ft\u0131rarak, fetal DNA’s\u0131n\u0131n ayr\u0131lmas\u0131n\u0131 belirler. Maternal kontaminasyon testi, prenatal testlerin do\u011frulu\u011funu art\u0131rarak, hamile kad\u0131nlar\u0131n ve bebe\u011fin sa\u011fl\u0131\u011f\u0131 i\u00e7in \u00f6nemli bir rol oynar.<\/p>\n

STR Analizi Nedir?<\/strong><\/h5>\n

STR analizi, k\u0131sa tandem tekrar dizileri (short tandem repeat sequences) olarak adland\u0131r\u0131lan, DNA \u00fczerinde tekrar eden k\u0131sa n\u00fckleotit dizilerinin tespit edilmesinde kullan\u0131lan bir genetik testtir. Bu test, DNA \u00f6rneklerinin kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131nda kullan\u0131l\u0131r ve \u00f6zellikle insan kimlik tespiti ve soy bilimi alanlar\u0131nda \u00f6nemli bir ara\u00e7t\u0131r.<\/p>\n

STR dizileri, 2-7 n\u00fckleotit uzunlu\u011funda olan tekrar eden dizilerdir. Bu diziler, genomun bir\u00e7ok farkl\u0131 b\u00f6lgesinde bulunur ve insanlarda bireysel farkl\u0131l\u0131klar g\u00f6sterir. Bu nedenle, STR analizi, DNA \u00f6rneklerinin benzerliklerini veya farkl\u0131l\u0131klar\u0131n\u0131 belirleyerek kimlik tespiti ve soy bilimi ama\u00e7lar\u0131 i\u00e7in kullan\u0131labilir.<\/p>\n

STR analizi, PCR (polimeraz zincir reaksiyonu) ve kapiller elektroforez gibi teknikleri kullanarak DNA \u00f6rneklerindeki STR dizilerini tespit eder. Bu test, DNA \u00f6rneklerindeki STR dizilerini sayarak, \u00f6rnekler aras\u0131ndaki benzerlikleri veya farkl\u0131l\u0131klar\u0131 belirler. Bu bilgi, \u00f6rne\u011fin, bir su\u00e7 mahalliyle bir ki\u015finin DNA’s\u0131 aras\u0131ndaki benzerlikleri tespit ederek, su\u00e7lunun kimli\u011finin belirlenmesinde kullan\u0131labilir.<\/p>\n

STR analizi, DNA \u00f6rneklerinin kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131nda kullan\u0131lan g\u00fcvenilir bir y\u00f6ntemdir ve hem adli t\u0131p hem de t\u0131bbi genetik gibi bir\u00e7ok farkl\u0131 alanlarda kullan\u0131l\u0131r.<\/p>\n

Algoritma \/ A\u00e7\u0131klama<\/strong>:Farkl\u0131 cinsiyetten nakil yap\u0131lm\u0131\u015fsa FISH ile \u00e7al\u0131\u015f\u0131labilir. Ayn\u0131 veya farkl\u0131 cinsiyetten nakil yap\u0131lm\u0131\u015fsa vericinin \u00f6rne\u011fi ve al\u0131c\u0131n\u0131n nakil \u00f6ncesi \u00f6rne\u011fi varsa STR analizi yap\u0131labilir.<\/p>\n\n\n\n\n\n\n\n
Y\u00f6ntem :<\/strong><\/td>\nSTR Analizi<\/td>\n<\/tr>\n
Raporlama S\u00fcresi :<\/strong><\/td>\n5 -7 G\u00fcn<\/td>\n<\/tr>\n
Prenatal\/ Postnatal:<\/strong><\/strong><\/td>\nPrenatal<\/td>\n<\/tr>\n
Gerekli Numune<\/strong>:<\/td>\nEDTA’l\u0131 Kan (2-4 ml)
\nAmniyon s\u0131v\u0131s\u0131
\nCVS
\nEDTA’l\u0131 kordon kan\u0131<\/td>\n<\/tr>\n
Saklama \/ Ta\u015f\u0131ma S\u0131cakl\u0131\u011f\u0131:<\/strong><\/td>\n+ 4C\u00b0\/ + 24C\u00b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u00fcm genetik testlerimiz “Hasta Onam Formu”<\/strong> ve “KVKK Formu”<\/strong>nun imzalanmas\u0131n\u0131n ard\u0131ndan \u00e7al\u0131\u015f\u0131lmaya ba\u015flan\u0131r.<\/p>\n

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Detayl\u0131 Bilgi Almak \u0130\u00e7in Bize Mesaj Atabilirsiniz.<\/strong><\/p>\n\n\n\n
[contact-form-7 id=”710″ title=”genetik ba\u015fvuru”]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Genoks Genetik Hastal\u0131klar De\u011ferlendirme Merkezi T.C. Sa\u011fl\u0131k Bankanl\u0131\u011f\u0131nca denetlenen ve GHDM-SM\/06.15\/01 ruhsat numaras\u0131 ile hizmet veren sa\u011fl\u0131k kurulu\u015fudur. genoks.com.tr web sayfas\u0131nda bulunan bilgiler, genetik de\u011ferlendirme ve\/veya tan\u0131-te\u015fhis ama\u00e7l\u0131 kullan\u0131lmamal\u0131d\u0131r. T\u00fcm i\u00e7erikler bilgilendirme ama\u00e7l\u0131d\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"

Maternal Contamination Test (STR Analysis) verifies that prenatal samples (CVS, amniocytes) are fetal in origin and not contaminated by maternal cells. Uses Short Tandem Repeat (STR) marker comparison between maternal blood and the prenatal sample. Mandatory quality-control step in cytogenetic [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[204],"doc_tag":[110,111,129],"class_list":["post-3208","docs","type-docs","status-publish","hentry","doc_category-genoks-gdhm-genetic-tests","doc_tag-maternal-kontaminasyon","doc_tag-maternal-kontaminasyon-testi","doc_tag-str-analizi"],"aioseo_notices":[],"year_month":"2026-05","word_count":570,"total_views":0,"reactions":{"happy":0,"normal":0,"sad":0},"author_info":{"name":"admin","author_nicename":"admin","author_url":"https:\/\/genoks.com.tr\/en\/author\/admin\/"},"doc_category_info":[{"term_name":"Genoks GDHM Genetic Tests","term_url":"https:\/\/genoks.com.tr\/en\/docs-category\/genoks-gdhm-genetic-tests\/"}],"doc_tag_info":[{"term_name":"Maternal kontaminasyon","term_url":"https:\/\/genoks.com.tr\/docs-tag\/maternal-kontaminasyon\/"},{"term_name":"Maternal kontaminasyon Testi","term_url":"https:\/\/genoks.com.tr\/docs-tag\/maternal-kontaminasyon-testi\/"},{"term_name":"STR Analizi","term_url":"https:\/\/genoks.com.tr\/docs-tag\/str-analizi\/"}],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t