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Ultrasound waves spark movement in sleepy sperm by up to 266%
Scientists have boosted the motility of sluggish sperm by up to 266%, by blasting the cells with noninvasive, 40-MHz ultrasound waves to induce movement. Capturing the technique's impact on individual sperm cells, the study opens the door to new non-invasive fertility treatments.
ICSI, in which a single sperm cell is injected directly into an extracted egg, is an extra, delicate and costly step during in vitro fertilization treatment. While clinical application is a distant goal, the researchers now plan to investigate just how ultrasound affects cellular function in slow sperm, and whether motility in treated cells can be sustained. "Improving sperm movement may also lead to better fertilization and embryo development rates and ultimately to more babies born, but this needs to be confirmed in further clinical studies."
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