Tag Archives: sperm

High BMI linked to sperm cell irregularities

Single-cell analysis of autopsied human testes suggests that abnormalities associated with aging sperm cells might be exacerbated by elevated body mass index (BMI). The research appears in the journal Developmental Cell. Even though it is well established that older men display … Continue reading

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COVID-19 alters levels of fertility-related proteins in men, study suggests

Many people who recover from COVID-19 experience long-term symptoms, such as brain fog or heart problems. Increasing evidence suggests that the virus can also impair fertility. Now, researchers at the Indian Institute of Technology have analyzed protein levels in semen … Continue reading

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Device directs sperm to ‘go against the flow’ to help infertility

The female genital tract can be a hostile environment for conception. Out of about 100 million sperm, only a few hundred make it to the fallopian tubes. Guided by a directional movement called rheotaxis, sperm cells swim against the cervical … Continue reading

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A missing ‘motor’ causes eggs to fail

Human eggs often contain the wrong number of chromosomes, leading to miscarriages and infertility. A research team led by Melina Schuh at the Max Planck Institute (MPI) for Multidisciplinary Sciences, in Germany, has discovered that human eggs are missing an … Continue reading

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Breakthrough sperm treatment offers new fertility hope

Researchers from Australia have discovered that using high-frequency ultrasound can boost the motility of sperm, potentially increasing a couple’s chances of conceiving. In a study published in Advanced Science, a team from the Monash University Department of Mechanical and Aerospace … Continue reading

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Breakthrough into the cause of male infertility

Scientists at Newcastle University, U.K., have identified a new genetic mechanism that can cause severe forms of male infertility. This breakthrough in understanding the underlying cause of male infertility offers hope of better treatment options for patients in the future. … Continue reading

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Cannabis impacts sperm counts, motility in two generations, study finds

An intense but short-term exposure to cannabis vapor lowered sperm counts and slowed sperm movement, or motility, not only in the directly exposed male mice but also in their sons. The Washington State University study, published in the journal Toxicological Sciences, … Continue reading

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Study: Sperm switch swimming patterns to locate egg

A new study from Cornell University reveals how sperm change their swimming patterns to navigate to the egg, shifting from a symmetrical motion that moves the sperm in a straight path to an asymmetrical one that promotes more circular swimming. … Continue reading

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Gene crucial to sperm cell production discovered

Scientists at Cincinnati Children’s Hospital appear to have flipped another piece in the under-explored puzzle of male infertility. In findings published in Cell Reports, senior author Tony De Falco, Ph.D., sheds new light on how sperm production can go wrong when … Continue reading

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Air pollution linked to lower sperm counts

Researchers have long known that air pollution can increase the risk of disorders such as obesity, diabetes and fertility, but they did not know the exact mechanism for how it can lead to these health conditions. Now, University of Maryland … Continue reading

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