Thursday, January 28, 2021
Home Lead Story New Study Shatters the Universally Accepted View of How Sperm 'Swim'

New Study Shatters the Universally Accepted View of How Sperm ‘Swim’

Human sperm swims in entirely different way than earlier thought

In a breakthrough for fertility science, scientists have shattered the universally accepted view of how sperm ‘swim’.

About 300 years ago, Antonie van Leeuwenhoek used one of the earliest microscopes to describe human sperm as having a “tail, which, when swimming, lashes with a snakelike movement, like eels in the water”.

This is an optical illusion, according to the new study.

Follow NewsGram on Instagram to keep yourself updated.

“Human sperm figured out if they roll as they swim, much like playful otters corkscrewing through water, their one-sided stoke would average itself out, and they would swim forwards,” said study author Hermes Gadelha from the University of Bristol in the UK.

“The sperms’ rapid and highly synchronised spinning causes an illusion when seen from above with 2D microscopes – the tail appears to have a side-to-side symmetric movement, like eels in the water, as described by Leeuwenhoek in the 17th century,” Gadelha added.

Human sperm swims in entirely different way than earlier thought
Revealed the sperm tail is, in fact, wonky and only wiggles on one side. Pixabay

Using state-of-the-art 3D microscopy and mathematics, the research team have pioneered the reconstruction of the true movement of the sperm tail in 3D.

Using a high-speed camera capable of recording over 55,000 frames in one second, and a microscope stage with a piezoelectric device to move the sample up and down at an incredibly high rate, they were able to scan the sperm swimming freely in 3D.

The study, published in the journal Science Advances, revealed the sperm tail is, in fact, wonky and only wiggles on one side.

While this should mean the spermm’s one-sided stroke would have it swimming in circles, sperm have found a clever way to adapt and swim forwards.

“Our discovery shows sperm have developed a swimming technique to compensate for their lop-sidedness and in doing so have ingeniously solved a mathematical puzzle at a microscopic scale: by creating symmetry out of asymmetry,” said Gadelha.

Human sperm swims in entirely different way than earlier thought
According to the researchers, the otter-like spinning of human sperm is complex. Pixabay

According to the researchers, the otter-like spinning of human spem is however complex: the sperm head spins at the same time that the sperm tail rotates around the swimming direction.

Also Read: Consume Vitamins, Minerals to Boost Immunity, Fight Pandemic: Experts

This is known in physics as precession, much like when the orbits of Earth and Mars precess around the sun.

This discovery, with its novel use of 3D microscope technology combined with mathematics, may provide fresh hope for unlocking the secrets of human reproduction.

“With over half of infertility caused by male factors, understanding the human sperm tail is fundamental to developing future diagnostic tools to identify unhealthy sperm,” Gadelha noted. (IANS)

STAY CONNECTED

19,120FansLike
362FollowersFollow
1,773FollowersFollow

Most Popular

Microsoft’s Remote Learning Products Gain Popularity

Driven by video conferencing platform Teams, more than 200 million students and educators worldwide now rely on Microsoft education products for remote learning, Microsoft...

This Report States That 1 In 2 Indians Are Afraid Of Online Dating

Most Indians feel secure while ordering food online but close to half of those surveyed were afraid of their online activities when it comes...

La Fuori Introduces Its Organic Slow Fashion In India

"Choosing a garment means deciding the identity of our future dreams, in connection with the world and the people who inhabit it," says Vidur...

Myeloid-Derived Suppressor Cells Ups Covid Infection Risk

Researchers have found that patients with severe Covid-19 have significantly elevated levels of a certain type of immune cells in their blood, called myeloid-derived...

Adults Feel Competent By Posting Photos On Facebook

Older adults who post more pictures on Facebook may feel more competent and that may lead to significantly higher levels of well-being in general,...

5 ways to ensure financial stability in the future

Introduction COVID-19 and the spread of the pandemic have had a huge impact on the national economies of most nations of the world. Among the...

Neonatal antibiotic leads to reduced growth in boys

Exposure to antibiotics in the initial days of life is associated with reduced weight and height in boys, a new study suggests. The study, published...

Daler Mehndi: In 26 years music industry has gone mad

Singer Daler Mehndi has been in the music industry for over two decades now and he says he has seen the industry in all...

Recent Comments