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. 2019 Nov 11;13(4):301–306. doi: 10.22074/ijfs.2020.5817

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The Cell Journal (Yakhteh) is an open access journal which means the articles are freely available online for any individual author to download and use the providing address. The journal is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported License which allows the author(s) to hold the copyright without restrictions that is permitting unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig 1 — Flow cytometry analysis. It showed that the average percent aminopeptidase N (APN/CD13) in control group (63 ± 12%) significantly decreased compared to heroin addicted ones (24 ± 12%), while the average percent endopeptidase (NEP/CD10) in control (4.3 ± 1%) and addicted group (3.7 ± 2%) showed no significantly decrease.