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.

Mutations in 'junk' DNA can cause autism, study shows

Leveraging artificial intelligence techniques, researchers have demonstrated that mutations in so-called 'junk' DNA can cause autism.

27 May 2019

Simple test can easily measure common stress hormones

Stress is often called "the silent killer" because of its stealthy and mysterious effects on everything from heart disease to mental health.

24 May 2019

Sperm quality among Swiss men in ‘critical state’, say experts

Swiss men have the worst quality sperm in Europe, with 17 percent of Swiss men being considered “sub-fertile”, according to new research.

24 May 2019

Testicular tissue cryopreservation offers hope for young men at risk of infertility

Testicular tissue samples obtained from 189 males who were facing procedures that could imperil fertility were cryopreserved at one university, proving the feasibility of centralized processing and freezing of testicular tissue obtained from academic medical centers, including Children's National, scattered around the world.

24 May 2019

Spatial configuration of the genome is not inherited, but set up during embryogenesis

The architecture of the DNA-protein complexes that make up the genome in each cell nucleus regulates the course of early embryonic development.

23 May 2019

Men who delay fatherhood put health of partners, unborn children at risk

Men who delay starting a family have a ticking "biological clock" -- just like women -- that may affect the health of their partners and children, according to Rutgers researchers.

13 May 2019

International team studies potential cancer suppression mechanisms in cetaceans

Scientists know that age and weight are risk factors in the development of cancer. That should mean that whales, which include some of the largest and longest-lived animals on Earth, have an outsized risk of developing cancer.

13 May 2019

Assisted reproductive technology solution from Olympus increases the efficiency of ICSI

The Olympus IX73SC inverted microscope system is an assisted reproductive technology (ART) solution that facilitates and even eliminates steps in the intracytoplasmic sperm injection (ICSI) workflow as part of the in vitro fertilization (IVF) process.

From Evident Corporation - Life Sciences 26 Apr 2019

KZFPs play a key role in the regulation of human genome

The human genome is fascinating. Once predicted to contain about a hundred thousand protein-coding genes, it now seems that the number is closer to twenty thousand, and maybe less.

19 Apr 2019

Study explores factors that impact fertility preservation decisions in transgender youth

The last thing on most teens' minds is whether or not they want to have kids someday. But transitioning transgender adolescents are forced to consider whether to preserve their sperm or eggs at a young age.

16 Apr 2019

New study sheds light on how extreme temperature hampers spermatogenesis in insects

The scientific community has long held an understanding about the effect of temperature on sperm production in mammals, but this new study sheds light on how spermatogenesis in insects is hampered at extreme temperatures.

15 Apr 2019

Unisex, hormone-free contraceptive pill on the horizon

Side effects from hormonal contraceptives are common. That’s why one start-up is developing a hormone-free contraceptive that can be used by both men and women.

12 Apr 2019

Children born via IVF more likely to develop cancer later in life

Scientists investigating have discovered a notable link between childhood cancer development and IVF.

3 Apr 2019

Male contraceptive pill crosses the human clinical trial hurdle

Birth control pills have been around for the past six decades but have been for use of women only. A team of researchers this week have announced the success of the first male birth control pill that could safely prevent pregnancy.

27 Mar 2019

Male contraceptive pill shown to be safe and tolerable in phase I trial

A potential new male birth control pill has been declared safe for use after a phase I trial showed that the once-daily capsule works without causing any significant side effects.

26 Mar 2019

Recurrent pregnancy loss may be caused by sperm DNA damage, finds study

Some cases of recurrent pregnancy loss may be caused by sperm DNA damage in the male partner, rather than by a problem in affected women, according to research to be presented Sunday, March 24 at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.

25 Mar 2019

Exposure to particulate air pollution may lead to reduced sperm production

Exposure to tiny air pollution particles may lead to reduced sperm production, suggests new research in mice to be presented Monday, March 25 at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.

25 Mar 2019

High-fat, high-sugar diet in mouse mothers causes problems in the hearts of offspring

A diet high in fats and sugars is known for its unhealthy effects on the heart. Scientists now have found that a high-fat, high-sugar diet in mouse mothers before and during pregnancy causes problems in the hearts of their offspring, and that such problems are passed down at least three generations, even if the younger generations only eat a standard mouse chow diet.

22 Mar 2019

Novel plasmid could hold key to control of mosquito-borne illness

A team of international researchers may have identified a new way to control mosquito-borne illnesses, according to a new study published in the journal Nature Communications.

21 Mar 2019

New mobile DNA element in Wolbachia may contribute to improved disease control strategies

Controlling mosquito-borne illnesses, such as Dengue or West Nile virus, has historically been difficult due to a lack of effective vaccines and concerns about the environmental impact of insecticides.

21 Mar 2019