Three or four micron sections of human omentum were subject to immunohistochemistry using the aforementioned primary antibodies, as previously described23 (link). To quantify RNase 3 reactive cells in omentum, slides were scanned at 20x magnification (NanoZoomer, Hamamatsu, Japan) and analyzed with Aperio ImageScope software (Leica, Wetzlar, Germany). Large vessels were excluded. The Positive Pixel Count Algorithm was used to determine the fraction of RNase3+ cells among total cell nuclei, expressed as a percentage.
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