Fertilization News and Research

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Pfizer-BioNTech COVID-19 vaccine may not be associated with adverse effects on fertility and breastfeeding, says study

A recent study by researchers in Singapore shows the absence of evidence for adverse effects on fertility or the presence of the vaccine mRNA (messenger ribonucleic acid) in breast milk, following the administration of the Pfizer BNT162B2 COVID-19 vaccine. This supports efforts to prevent the spread of false information about the effects of the vaccine.

27 May 2021

Animal and insect invasions could shed light on COVID-19 transmission

Invasions by alien insect and animal species have much in common with outbreaks of infectious diseases and could tell us a great deal about how pandemics spread, according to a research paper published today.

19 May 2021

New focus on adverse impact of male factors in assisted reproductive treatments

The adverse impact of male factors in assisted reproductive treatments was brought into a clear and disturbing focus at the 10th Congress of the Asia Pacific Initiative on Reproduction.

17 May 2021

Rice University neurobiologist wins NIH grant to study enteric nervous system development

Rice University neurobiologist Rosa Uribe will be hitting the books for her latest study of the digestive system, but some of the pages in her books are a billion years old.

10 May 2021

Study reveals no negative effect of SARS-CoV-2 BNT162b2 vaccination on male fertility

Researchers analyzed the sperm parameters of males undergoing fertility treatment and found no effect from the BNT162b2 mRNA severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine.

4 May 2021

Planned cesarean deliveries may be associated with lower risk of adverse outcomes

New research shows that planned cesarean deliveries on maternal request are safe for low-risk pregnancies and may be associated with a lower risk of adverse delivery outcomes than planned vaginal deliveries.

3 May 2021

Gene-regulatory mechanisms at an early embryonic stage govern the flowering behavior of Arabidopsis

Researchers at GMI - Gregor Mendel Institute of Molecular Plant Biology of the Austrian Academy of Sciences - and the John Innes Centre, Norwich, United Kingdom, determine that gene-regulatory mechanisms at an early embryonic stage govern the flowering behavior of Arabidopsis later in development. The paper is published in the journal PNAS.

22 Apr 2021

Competition and natural selection drive the size discrepancy of sperm and egg cell

In most living animals, egg cells are vastly larger than sperm cells. In humans, for example, a single egg is 10 million times the volume of a sperm cell.

19 Apr 2021

HP1a is a key epigenetic regulator that maintains chromosome integrity

The information of the human genome is encoded by approximately 3 billion DNA base pairs and packaged into 23 pairs of chromosomes.

16 Apr 2021

Ovarian follicular function unaffected by SARS-CoV-2 infection or Pfizer vaccine, study finds

A new study by researchers in Jerusalem indicates that while specific antibodies to the virus are present in both serum and ovarian follicles following infection or vaccination, there is no apparent adverse effect on follicular function as a result.

15 Apr 2021

Study solves mystery of how cells measure their size

Scientists have searched for years to understand how cells measure their size. Cell size is critical. It's what regulates cell division in a growing organism.

15 Apr 2021

Could Zebrafish larvae be a novel animal model for SARS-CoV-2?

Researchers based in Paris, France, have explored the potential use of zebrafish larvae as animal models for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). These larvae are small and cheap, so could prove a suitable medium for rapid mass testing of the disease.

13 Apr 2021

Study estimates the treatment costs of uterine transplantation

Sweden's acclaimed research on uterine transplants has taken a new step forward: into the field of health economics.

7 Apr 2021

AI-based system may help choose viable and healthy early-stage embryo for IVF

The team of researchers at Kaunas University of Technology (KTU), Lithuania applied artificial intelligence (AI) methods to evaluate data of human embryo development.

26 Mar 2021

Study identifies how environmental information is transmitted by non-DNA molecules in the sperm

It has long been understood that a parent's DNA is the principal determinant of health and disease in offspring.

16 Mar 2021

Somatic gene mutations in brain cells could contribute to schizophrenia pathology

Schizophrenia is a neurodevelopmental disorder that disrupts brain activity producing hallucinations, delusions, and other cognitive disturbances. Researchers have long searched for genetic influences in the disease, but genetic mutations have been identified in only a small fraction--fewer than a quarter--of sequenced patients.

9 Mar 2021

Research reveals increased risk of COVID-19 among women with PCOS

Women with polycystic ovary syndrome (PCOS) are at a significantly increased risk of contracting COVID-19 than women without the condition, new research led by the University of Birmingham has revealed.

9 Mar 2021

Study reveals physical phenomena relied by oocytes to grow big

Egg cells are by far the largest cells produced by most organisms. In humans, they are several times larger than a typical body cell and about 10,000 times larger than sperm cells.

8 Mar 2021

Study suggests revisiting 14-day limit on human embryo in a dish

An international team of bioethicists and scientists, led by a researcher at Case Western Reserve University, contends it may be justified to go beyond the standing 14-day limit that restricts how long researchers can study human embryos in a dish.

5 Mar 2021

Researchers discover a safe, effective, reversible male contraceptive agent

In a new paper published by Nature Communications, The Lundquist Institute (TLI) Investigator Wei Yan, MD, PhD, and his research colleagues spell out an innovative strategy that has led to the discovery of a natural compound as a safe, effective and reversible male contraceptive agent in pre-clinical animal models

4 Mar 2021