Fertilization News and Research

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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

As red states push strident abortion bans, other restrictions suddenly look less extreme

What is the ultimate goal of the anti-abortion movement? It might be surprising.

30 Mar 2022

Study reveals a deeper level of cellular heterogeneity within fallopian tubes

The fallopian tube is the site of fertilization, where once a month for the duration of a female's post-pubescent, pre-menopausal life, an egg is moved from the ovary, ready for fertilization by a sperm cell.

29 Mar 2022

Predicting the risk of some common diseases in preimplantation fertilized embryos

A new study uses a novel strategy for whole-genome reconstruction by using parental genome sequencing and sibling embryo genotyping.

23 Mar 2022

Experts highlight understated ethics, unclear utility of polygenic embryo testing

New technologies are expanding the reach and accessibility of preimplantation genetic testing of human embryos. But what these advances can deliver is still unclear, and a frank assessment of their profound ethical implications is urgently needed, concludes a commentary in Nature Medicine.

22 Mar 2022

Research sheds light on important events that may play a role in infertility

Everyone considers sperm to be made exclusively by males. But did you know that females also make sperm? Well, it turns out that females also contribute to what makes a sperm a sperm.

8 Mar 2022

Women with one ovary less likely to have a successful IVF outcome, study shows

Women who have had one ovary surgically removed (unilateral oophorectomy) are less likely to become pregnant after in vitro fertilization and give birth to fewer babies than women with both ovaries.

8 Mar 2022

Common infertility treatment linked to increased risk for vascular and pregnancy-related complications

Women who conceive with assisted reproductive technology (infertility treatment) may be at increased risk for vascular and pregnancy-related complications, according to new research published today in a special Go Red for Women issue of the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

22 Feb 2022

Zebrafish model reveals how early embryo cells begin to independently produce proteins

It happens in the first hours after fertilization: The cells of the early embryo begin to independently produce proteins, the building blocks for cells and organs.

16 Feb 2022

Using interdisciplinary approach to beat cancer

European Cooperation in Science and Technology (COST) World Cancer Day aims at raising awareness of cancer and to encourage its prevention, detection, and treatment.

4 Feb 2022

COVID-19 vaccination does not affect fertility outcomes in patients undergoing in-vitro fertilization

Vaccination against COVID-19 did not affect fertility outcomes in patients undergoing in-vitro fertilization (IVF), a new study has found.

27 Jan 2022

Study reveals an increasing proportion of women giving birth at 40+

An increasing proportion of women aged 40 and over in Sweden and Denmark are giving birth. Nevertheless, over a recent 10-year period, the need for assisted reproduction for women over 40 in Scandinavia has doubled, a study led by University of Gothenburg researchers shows.

11 Jan 2022

Children conceived with assisted reproductive techniques are not at risk of poor psychiatric health

Use of assisted reproductive techniques (ART) does not lead to poorer mental health in children across adolescence and young adulthood, according to a large observational study led by researchers at Karolinska Institutet in Sweden.

15 Dec 2021

Cells with oncogenic mutations overtake human tissue with age, research shows

It's worth noting, in light of recently published research, that a majority of people won't be diagnosed with cancer in their lifetimes. According to the National Cancer Institute, about 40% of people will, which means 60% won't.

14 Dec 2021

Researchers uncover the journey of microglia in developing zebrafish

Microglia, the immune cells of the brain, form the first line of defense against neurodegenerative diseases and traumatic brain injuries.

8 Dec 2021

Research offers a phylogenetic and ontogenetic overview of the primitive streak

In their publication in Science, Professor Guojun Sheng (Kumamoto University, Japan), Professor Alfonso Martinez Arias (Universidad Pompeu Fabra, Spain) and Professor Ann Sutherland (University of Virginia Health System, USA) offer a phylogenetic and ontogenetic overview of the primitive streak and its role in mediating amniote (vertebrate animals that develop on land) gastrulation, and discuss the implications of embryonic stem cell-based models of early mammalian embryogenesis on the function of this structure.

4 Dec 2021

Researchers shed light on an important stage of early human embryogenesis for the first time

Scientists have shed light on an important stage of early embryonic development that has never been fully mapped out in humans before.

29 Nov 2021

UGA study makes breakthrough for treatment of male infertility

With global rates of male infertility continuing to rise, a new study in spermatogonial stem cell research led by researchers at the University of Georgia provides hope for future clinical therapies.

19 Oct 2021

Mothers pass on the legacy of stress exposure to future generations

A mother's response to stress can even influence her grandchildren. Biologists at the University of Iowa found that roundworm mothers subjected to heat stress passed, under certain conditions and through modifications to their genes, the legacy of that stress exposure not only to their offspring but even to their offspring's children.

13 Oct 2021

Using genetic screening for selecting the 'best' embryo in IVF

Each year, tens of thousands of babies are born in the United States as the result of IVF (in vitro fertilization) – where several eggs are fertilized outside the mother's body and then an embryo is selected for transfer into her womb.

12 Oct 2021