Figure 1From: Changing survival, memory cell compartment, and T-helper balance of lymphocytes between severe and mild asthmaThe immunocytochemical staining of PBL with brown color DAB-chromogen. Black arrow refers to positive cells with overall DAB dark brown staining. White arrow refers to negative cells with overall blue hematoxylin counterstaining. (A) An example of few positively immunostained cells with Bcl-2 in HV. (B) An example of numerous positively immunostained cells with Bcl-2 in severe asthmatic patients. The photos were taken at magnification power of 100×.Back to article page