Embryo News and Research

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ISTA researchers prove keratin is indispensable for coherent cell migration

Hair, nails, and horns, all made up of keratin, are some of the hardest and most resilient structures in animals. Inside zebrafish cells, keratin plays a distinct role, giving them the strength they need to move together as a coherent tissue while modulating the driving forces behind their movement during early development. But what happens when keratin is missing?

22 May 2026

UC Davis scientists identify protein key to male fertility

The causes of male infertility can be hard to diagnose, with many tests failing to detect genetic defects. Sometimes, infertility doesn't even involve the genes themselves.

19 May 2026

Blood-cell X chromosome loss may predict lower natural fertility

A study reveals that mosaic loss of the X chromosome in blood cells may indicate reduced natural conception likelihood in women, linking fertility and aging.

13 May 2026

Scientists develop advanced lab-grown kidney organoids for disease research

A team led by USC Stem Cell scientist Zhongwei Li, PhD, has produced some of the most complex and mature lab-grown kidney models to date.

12 May 2026

Study shows eIF4G2 gene maintains adult intestinal stem cell identity

Years before he conducted the research that would earn him a Nobel Prize in Physiology and Medicine, Shinya Yamanaka, MD, PhD, was a postdoctoral scientist at Gladstone Institutes, studying genes.

30 Apr 2026

Lower grip strength in early pregnancy linked to risk of hypertensive disorders of pregnancy

Hypertensive disorders of pregnancy (HDP) are a leading cause of maternal mortality worldwide. In addition, HDP can lead to fetal growth restriction, preterm birth, and various long-term adverse health outcomes.

24 Apr 2026

Stem cell model recreates early human embryo with yolk sac

For the first time, a stem cell model has produced a structure resembling an early human embryo with a yolk-sac-like structure, from a single starting stem cell population and without direct genetic manipulation.

21 Apr 2026

Polygenic embryo testing raises ethical concerns beyond disease prevention

For more than four decades, in vitro fertilization (IVF) has helped families have children. Scientists estimate that more than 10 million people worldwide have been born through IVF and related assisted reproductive technologies, according to the International Committee for Monitoring Assisted Reproductive Technologies.

31 Mar 2026

Microgravity reduces the ability of sperm to navigate reproductive tracts

Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational abilities of sperm are negatively impacted by a lack of gravity.

26 Mar 2026

UPFs before conception may shape fertility and embryo growth

Findings show ultraprocessed food consumption before conception influences fertility and embryonic development, urging further research in this area.

26 Mar 2026

Study connects ultra-processed diets to fertility and embryo development

Eating large amounts of ultra-processed food (UPF) is linked not only to reduced fertility in men, but also to slower growth in early embryos, and smaller yolk sacs, which are essential for early embryonic development, according to new research.

24 Mar 2026

U.S. study links ultra-processed foods to lower odds of fertility

A cross-sectional NHANES study of 2,582 U.S. women found that higher ultra-processed food intake was associated with lower odds of being classified as fertile based on self-reported infertility history. Greater Mediterranean diet adherence was linked to higher odds of fertility in adjusted models, but that association was no longer significant after accounting for obesity.

22 Mar 2026

Weight-loss drugs linked to preterm birth risk in women with pre-existing diabetes

Weight loss drugs have been linked to an increased risk of premature births among women who took them inadvertently just before or during early pregnancy to treat pre-existing diabetes.

17 Mar 2026

New imaging method maps gene activity across entire zebrafish embryo

How does a tiny cluster of cells become an embryo with a head, trunk, and tail? And how do thousands of genes coordinate this development?

12 Mar 2026

Immune switch plays a critical role in successful pregnancies

Early pregnancy depends on a remarkable act of coordination. Before the placenta can nourish a growing fetus, the embryo must securely "land" and connect with the mother's blood supply - a process guided by a specialized group of immune cells called uterine natural killer cells, or uNK cells.

12 Mar 2026

Study maps how NF-κB regulates gene expression in cells

To further the quantitative understanding of cellular decision making, Dr. Gregory Reeves and his team in the chemical engineering department have worked to interpret how a transcription factor dictates the alteration of gene expression in cells.

27 Feb 2026

New method clarifies whether NOTCH1 variants cause congenital heart defects

One to two out of every 100 newborn babies are born with a Congenital Heart Defect (CHD), yet the exact cause remains unclear.

26 Feb 2026

New Pico C technology maps genome structure before activation

For decades, scientists viewed the genome of a newly fertilised egg as a structural 'blank slate' – a disordered tangle of DNA waiting for the embryo to 'wake up' and start reading its own genetic instructions.

24 Feb 2026

Embryonic reproductive cells reveal striking genomic architecture before development

Researchers at the MRC Laboratory of Medical Sciences (LMS) and Imperial College London have shown for the first time that, before they can start developing into egg and sperm cells, the embryonic precursors of these cells uniquely reshape the 3D organization of their genetic material.

20 Feb 2026