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(A) The detection of Y chromosomes (green fluorescence) using FISH indicates the presence of male donor cells in the colon of female recipients 21 days after transplantation in 2, 4, 6-trinitrobenzenesulfonic acid+hematopoietic stem cells+mesenchymal stem cells group (group C). (B) DAPI (blue fluorescence) stain indicates all the cells in the same view.
