Sperm News and Research

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The term sperm refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell.

Researchers develop primitive endoderm stem cells in mice

RIKEN scientists have extracted and grown stem cells that give way to the mouse yolk sac for the first time in the laboratory, boosting the potential of generating mouse embryos from stem cells in the coming years.

23 May 2022

Extra copies of DNA explain insensitivity to chemotherapy in germ cell cancer

Extra copies of a piece of DNA partly explain insensitivity to chemotherapy in germ cell cancer, a new study shows.

21 Apr 2022

Primordial germ cell-like cells produced from stem cells undergo gametogenesis to yield normal offspring

Primordial germ cell-like cells (PGCLCs), generated in vitro from the stem cells of rats, undergo gametogenesis in vivo and yield normal rat offspring, a new study demonstrates.

8 Apr 2022

Using a microfluidic chip for selection of healthy sperm based on positive rheotaxis

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.

1 Apr 2022

Study explores that extra dosages of genes may lead to surplus X chromosomes

One out of every 500 to 1,000 boys is born with one or more extra X chromosomes, which can cause a variety of symptoms as the extra chromosomes to including infertility, larger breasts, osteoporosis, diabetes, cardiac problems, intellectual incapacity, and cancer.

1 Apr 2022

Research shows that fruit flies sperm are no more male entirely after mating

According to recent research on fruit flies, the sperm becomes half feminine after mating, which was previously thought to be purely male.

25 Mar 2022

Researchers demonstrate how sperms defend their membranes from oxidation

A team of researchers compared lipid profiles of sperm to learn more about their vulnerability to harmful oxidation and antioxidant capacity in different species’ semen.

21 Mar 2022

New research explains Darwinian theory of gradual directional process of incremental changes

Abrupt shifts in the evolution of animals – short periods of time when an organism rapidly changes size or form – have long been a challenge for theorists including Darwin.

3 Mar 2022

UGA research determines when pollen comes of age

It cakes our cars in yellow powder every spring and taunts allergy sufferers for months on end, but pollen is more than just plant sperm.

From University of Georgia 23 Feb 2022

Researchers develop a method for preserving human primordial germ cell-like cells

Human primordial germ cells (PGCs) are the early precursors of the eggs (oocytes) and sperm that are necessary to keep humankind alive and reproducing.

11 Feb 2022

Epigenetic inheritance enhances mating in stressed out C. elegans

Sexual reproduction allows organisms to mix up their genes and develop new adaptations to survive a harsh and ever-changing environment.

8 Feb 2022

Developing Sperm Cells from Primate Stem Cells

We speak to Professor Charles Easley about his latest research into male infertility, and how sperm cells could be potentially developed from primate stem cells.

From University of Georgia 15 Dec 2021

Researchers come up with a novel technique to produce single-sex litters

Researchers from the Francis Crick Institute along with the University of Kent utilized gene-editing technology to produce male-only and female-only mice litter with 100% efficacy.

7 Dec 2021

Exposure to cannabis vapor reduces sperm counts and motility in two generations of mice

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.

6 Dec 2021

New technique could dramatically speed up the breeding of new crops

Scientists are a step closer to breeding plants with genes from only one parent. New research led by plant biologists at the University of California, Davis, published Nov. 19 in Science Advances, shows the underlying mechanism behind eliminating half the genome and could make for easier and more rapid breeding of crop plants with desirable traits such as disease resistance.

From The University of California, Davis 22 Nov 2021

Sperm News and Research

Researchers develop primitive endoderm stem cells in mice

Extra copies of DNA explain insensitivity to chemotherapy in germ cell cancer

Primordial germ cell-like cells produced from stem cells undergo gametogenesis to yield normal offspring

Using a microfluidic chip for selection of healthy sperm based on positive rheotaxis

Study explores that extra dosages of genes may lead to surplus X chromosomes

Research shows that fruit flies sperm are no more male entirely after mating

Researchers demonstrate how sperms defend their membranes from oxidation

New research explains Darwinian theory of gradual directional process of incremental changes

UGA research determines when pollen comes of age

Researchers develop a method for preserving human primordial germ cell-like cells

Epigenetic inheritance enhances mating in stressed out C. elegans

Developing Sperm Cells from Primate Stem Cells

Researchers come up with a novel technique to produce single-sex litters

Exposure to cannabis vapor reduces sperm counts and motility in two generations of mice

New technique could dramatically speed up the breeding of new crops

De Novo Mutations may Play a Role in Male Infertility

Scientists identify gene crucial to sperm cell production

Mice study shows how air pollution reduces sperm count by causing brain inflammation

Functional sperm cells can be made in a dish using primate embryonic stem cells, study shows

Genome editing tool used to render male mosquitoes infertile and slow disease spread

Driving Support for Pharmaceutical Testing Through Continuous Innovation

From Memory to Metaplasticity: Unraveling the Brain's Secrets

Revolutionizing Mass Spectrometry: A Deep Dive into Plasmion’s SICRIT® Technology

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