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Using a model system of glass particles, researchers from Penn found "solid bridges" formed by smaller-size particles between larger ones. The same bridges were present in suspensions of clay, a common component of natural soils. These structures provided stability, the team found, even when a moving channel of water threatened to wash the particle clumps away. Image credit: Jerolmack laboratory
Looking to mud to study how particles become sticky

February 6, 2020

It happens outside every time it rains: The soil gets wet and may form sticky mud. Then it…
Jumping Genes Threaten Egg Cell Quality; Understanding Their Activity Has Implications For Fertility And Health Of Future Generations.

January 17, 2020

A woman’s supply of eggs is finite, so it is crucial that the quality of their genetic material…
Fertilization Discovery Reveals New Role For The Egg

November 14, 2019

An unexpected discovery about fertilization from the University of Virginia School of Medicine reveals new insights on how…
Fertility-sparing surgery is as good as radical surgery for early ovarian cancer

September 5, 2019

Young women with early stage ovarian cancer can undergo fertility-preserving surgery without affecting the safety of their cancer…
Transgender Women Can Regain Fertility Shows Case Study

August 6, 2019

Scientists at Magee-Womens Research Institute (MWRI), collaborating with clinicians at UPMC Magee-Womens Hospital and UPMC Children’s Hospital of Pittsburgh report two cases in which…
Scientists found that physical exercise boosts fertility in women as much as traditional therapies

June 30, 2019

A lot of people struggle to conceive a baby. It is truly debilitating situation to be in. Also,…
Is Egg Freezing Right for You?

May 30, 2019

Advertising has a long history of targeting people with fantastic promises. From the perfect cream that will zap…
Scientists uncover mysteries of the powerful movement of the human sperm

March 25, 2019

Sperm is an incredibly good swimmer for its size. It needs quite a bit of strength to break…
Preserving Fertility in Pediatric Cancer Survivors

March 25, 2019

One in three childhood cancer survivors is at risk of becoming infertile due to chemotherapy or radiation, and…
Missing men, missing infertility: New research flags up problem

September 5, 2018

Men are missing from fertility debates and crucial support services because they are often not included in studies…
Fertility breakthrough: New research could extend egg health with age

February 27, 2018

Women have been told for years that if they don’t have children before their mid-30s, they may not…
Fertility Study Offers Unexpected Lead on Dwarfism

February 6, 2018

As components of two entirely separate systems in the body, you wouldn’t think ovaries have much in common…
Frozen vs. fresh embryos for IVF? Study finds little impact on fertility

January 12, 2018

Many women struggling to have a baby turn to in-vitro fertilization to improve their chances, and then face…
Worm species lost 7,000 genes after evolving to fertilize itself

January 12, 2018

Reproduction in most animal species requires breeding between two individuals. But some worms have evolved the ability to go it alone.…
Egg Fertilization: Making Waves

December 22, 2017

For more than half a century, studies on the African clawed frog (Xenopus laevis) have helped scientists better…
Study in mice finds dietary levels of genistein may adversely affect female fertility

November 15, 2017

Exposure to the phytoestrogen genistein prior to conception may adversely affect female fertility and pregnancy outcomes, depending on…
Breast Cancer Patients Who Freeze Their Eggs See No Delay for Chemotherapy

September 11, 2017

Women who receive a breast cancer diagnosis while they are still young enough to bear children can take…
Career women optimistic about delayed childbearing despite lower fertility

September 7, 2017

Women who prioritize their careers value pregnancy planning and believe they have a good chance of conceiving late…
Plants to Feed This — and Other — Worlds

June 18, 2017

Astronaut ice cream may be an exotic treat for kids, but for real space explorers, a fresh, crunchy…
Folk contraceptives lead researchers to drugs that block fertilization

May 17, 2017

Two chemicals found in anti-fertility folk medicines block a key step in fertilization – the meeting of egg…
In roundworms, fats tip the scales of fertility

April 21, 2017

Proper nutrition can unleash amazing powers, moms have always assured us, frequently citing Popeye the Sailor Man as…
Ladies, this is why fertility declines with age

April 4, 2017

Researchers at the University of Montreal Hospital Research Center (CRCHUM) have discovered a possible new explanation for female…
Transport of molecular motors into cilia

March 28, 2017

Molecular motors produce the force that powers the beat of sperm cell tails to generate movement toward the…
Researchers describe how sperm can lose their way

February 27, 2017

Sperm tails are actually complex propellant and navigational devices that help push them through fluids and navigate around…
Novel Tool Informs Women About Elective Egg Freezing

February 7, 2017

The American Society for Reproductive Medicine lifted the experimental status for egg freezing in October 2012, and since…
Biologists identify reproductive traffic cop

January 23, 2017

Before an egg becomes fertilized, sets of chromosomes must pair up to pass along genetic information. This happens…
Out of gas and low on sperm?

December 28, 2016

Kyoto University uncovers a genetic key to self-renewal of reproductive cells Sperm are constantly replenished in the adult…
Scientists Visualize Embryo Implantation in the Mouse Uterus in Unprecedented 3D Detail

December 16, 2016

UC San Francisco researchers have visualized the earliest stages of pregnancy in unprecedented detail in laboratory animals and…
Common chemotherapy combination causes women to grow new eggs

December 9, 2016

There are drugs that people use for a long time, even though scientists are still performing various experiments…
What happens in the cell nucleus after fertilization

December 8, 2016

A team of scientists at the Helmholtz Zentrum München shows changes in the immediate environment of DNA after…
New research provides key insight about mitochondrial replacement therapy

November 30, 2016

OHSU-led study in Nature suggests mitochondrial donors should be carefully selected to avoid transmission of harmful mutations A…
New technique could increase success of infertility treatment

November 13, 2016

Researchers at OHSU and Salk Institute develop new method to transmit a mother’s genetic material into donor eggs…
Zika infection reduces fertility, lowers testosterone in male mice

November 1, 2016

Most of the research to understand the consequences of Zika virus infection has focused on how the virus…
How human eggs end up with the wrong number of chromosomes

October 20, 2016

One day before ovulation, human oocytes begin to divide into what will become mature eggs. Ideally, eggs are…
How age-related genetic anomalies contribute to the maternal age effect

October 19, 2016

For women in their 30s and beyond, the probability of a pregnancy that results in a miscarriage or…
Could assisted reproduction reduce birth defects for older women?

October 18, 2016

Babies born to women aged 40 and over from assisted reproduction have fewer birth defects compared with those…
Researchers Find Fertility Genes Required for Sperm Stem Cells

September 29, 2016

The underlying cause of male infertility is unknown for 30 percent of cases. In a pair of new…
Newly discovered gene critical to embryo’s first days

September 18, 2016

A previously unknown gene plays a critical part in the development of the human embryo during the first…
Cannabinoid receptor activates spermatozoa

September 4, 2016

During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg in…
Up to 14 units of alcohol does not harm fertility

September 1, 2016

If a woman remains below 14 units of beer or wine per week, she has the same probability…
A molecular alarm clock awakens resting ovules

August 19, 2016

At the start of reproductive life an ovary contains, on average, several thousands of immature ovules in a…
Inside Balbiani Bodies

July 30, 2016

Researchers don’t yet know how immature egg cells, or oocytes, survive and protect their contents while they lie…
High levels of urinary paracetamol may impair male fertility, NIH study suggests

July 15, 2016

Couples in which the male partner had high levels of paracetamol in his urine took longer to achieve…
Survival of the fittest sperm: How new technology may help infertile couples

June 16, 2016

The competition is fierce and only the strongest survive the obstacle course within the female reproductive tract. Of…
The biological clock gets a time stamp

June 7, 2016

Yale School of Medicine researchers have identified the molecular pathways involved in the aging of human eggs. This…
A critical inheritance from dad ensures healthy embryos

May 27, 2016

An important feature for life is what embryos receive from mom and dad upon fertilization. Oddly enough, centrioles,…
Brenner’s simpler fertility test is basis for promising UW-Madison spinoff

May 3, 2016

Doubts about their ability to become pregnant affect as many as 25 percent of American women, and solving…
Genes that raise the chances of non-identical twins identified

May 3, 2016

Gene variants that increase by 29 per cent a woman’s chance of giving birth to non-identical twins have…
Radiant Zinc Fireworks Reveal Quality of Human Egg

April 28, 2016

A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and…
Maternal obesity and poor nutrition in the womb impairs fertility in female offspring

April 11, 2016

Research in The FASEB Journal suggests that daughters whose mothers ate a high-fat, high-sugar diet during pregnancy had…
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