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. 2023 Jan 11;20:8. doi: 10.1186/s12974-023-02689-x

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© The Author(s) 2023

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 5 — NK cells positively regulate behavioral deficits after PT stroke induction. A Coordinates of the lesion on the brain of photothromobotic (PT) mouse model used for beam-walk sensorimotor test analysis. The center of the lesion is 0.3 mm in front of bregma and 2.0 mm lateral to midline, with the 2 mm of diameter. B Nissl staining on the vibratome section of stroke brain at day 2 after PT. Data represent n = 7 mice. C The beam-walk sensorimotor test analysis was performed by calculating percentage of contralateral hindlimb faults. Anti-NK1.1 or IgG2a was injected at day 9 (P-9) and day 2 (P-2) before PT induction and the efficiency of depletion in blood was tested at P-7, P-1, P6, P12 and P18. The videos were recorded just before PT induction (P0) and every second day afterwards. (n = 3 mice for IgG2a, n = 4 mice for anti-NK1.1). D Lesion sizes of brains from the isotype control (IgG2a) (blue) vs. anti-NK1.1 (red) injected mice at P2 and P18 (n = 3 mice for IgG2a, n = 4 mice for anti-NK1.1). E Control (n = 4) and KO (n = 4) mice after PT induction by calculating the percentage of contralateral hindlimb faults.. P2 **p = 0.0058, P4 **P = 0.0053, P6 **P = 0.0096