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Histological analysis showed that FOXO4-DRI treatment improved the testicular microenvironment, leading to thicker seminiferous epithelia, increased spermatogenic cells, and more mature spermatozoa in the central lumen

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Physical examination checks range of motion, muscle tenderness, and nerve function

Apply gentle pressure with a clean swab if needed

In addition, taking nicotinic acid on empty stomach can cause flushing and upset stomach