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.

Potential new diagnostic marker predicts successful, efficient development of mammalian egg cells

Researchers at the Centre for Genomic Regulation in Barcelona have identified a potential new diagnostic marker that predicts the successful and efficient development of mammalian egg cells.

23 May 2022

COVID-19's impact on sex and fertility

The potential effects of SARS-CoV-2 on sexual activity and fertility.

20 May 2022

New micro-device could be a game-changer for thousands of people with infertility

A research team led by the University of Adelaide, in partnership with medical technology company Fertilis, has delivered a ground-breaking new micro-device to streamline the only fertility treatment procedure available for men with low sperm counts.

16 May 2022

Study shows dengue virus can lower sperm production in men

A new study supports the notion that the dengue virus can be sexually transmissible for a short period after acute dengue illness and that it can also cause alterations in sperm production.

16 May 2022

Novel technique to measure sperm age may help predict pregnancy success

A novel technique to measure the age of male sperm has the potential to predict the success and time it takes to become pregnant, according to a newly published study by researchers at the Wayne State University School of Medicine.

13 May 2022

Discovery of new structure in the egg cells of zebrafish could provide insights into human reproduction

It is humbling to realize that we humans share about 70% of our genes with zebrafish. There are also a whole host of other similarities that make these small transparent fish an ideal animal model for the study of many human diseases and biological processes.

12 May 2022

Hypermutation in children could be linked to the biological father receiving chemotherapy treatments

Some rare cases of higher genetic mutation rates in children, known as hypermutation, could be linked to the father receiving certain chemotherapy treatments, new research has found.

11 May 2022

Testis tissue frozen for more than two decades can produce viable sperm after reimplantation

A new study demonstrates that rat testis tissue frozen for over 20 years can be successfully transplanted into infertile mice to regenerate and produce sperm.

11 May 2022

Testicular tissue can be successfully frozen for over 20 years, study shows

Male testis tissue that is cryopreserved can be reimplanted after more than 20 years and will go on to make viable sperm, according to a new study in rodents in the open-access journal PLOS Biology by Eoin Whelan of the School of Veterinary Medicine, University of Pennsylvania and colleagues publishing May 10th.

10 May 2022

Postnatal gene therapy may be able to prevent or reverse deadly effects of Pitt-Hopkins syndrome

UNC School of Medicine Scientists have shown for the first time that postnatal gene therapy may be able to prevent or reverse many deleterious effects of a rare genetic disorder called Pitt-Hopkins syndrome.

10 May 2022

Elevated BMI may exacerbate abnormalities associated with aging sperm cells

Single-cell analysis of autopsied human testes suggests that abnormalities associated with aging sperm cells might be exacerbated by elevated body mass index (BMI).

2 May 2022

Emergency contraception marks a new battle line in Texas

"Mysterious Dolphin" needed an emergency contraception pill dropped off on a porch outside of town.

28 Apr 2022

DNA abnormality explains 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.

20 Apr 2022

Does COVID-19 vaccination affect IVF treatments?

A new study assesses the impact of COVID-19 vaccination in women undergoing assisted reproduction.

12 Apr 2022

Millions of people face a postcode lottery to access fertility freezing treatments

Depending on where some people live in the UK could mean they are denied an NHS treatment which helps patients with medical needs, such as cancer and transgender issues, become parents in the future.

11 Apr 2022

COVID-19 could change the levels of proteins related to male reproductive function

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.

7 Apr 2022

Primordial germ cell-like cells generated from rat stem cells enable the birth of 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.

7 Apr 2022

Paternal use of diabetes drug associated with genital birth defects in boys

Boys were more likely to be born with genital birth defects if their fathers took the commonly prescribed diabetes drug metformin in the three months before conception, according to a new study by Stanford Medicine investigators and their collaborators in Denmark.

6 Apr 2022

Researchers develop a fast, inexpensive microfluidic chip for sperm sorting

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.

31 Mar 2022

3D Printing Testicular Cells to Treat Infertility

In this interview, we speak to Dr. Ryan Flannigan about his latest research that involved the 3D printing of sperm cells to help treat male infertility.