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Last updated on April 17, 2014 at 17:30 EDT

Latest Fertilisation Stories

2014-04-08 11:41:02

Researchers have discovered a way of reducing the fertility of malaria-carrying mosquitoes, potentially providing a new tactic to combat the disease. Anopheles gambiae mosquitoes are the main transmitters of malaria, which affects around 200 million people every year. The females mate only once during their lives. They store the sperm from this single mating in an organ called the spermatheca, from which they repeatedly take sperm over the course of their lifetime to fertilize the eggs...

2014-02-14 08:25:59

Sperm meet egg NEW YORK, February 14, 2014 /PRNewswire/ -- Pressure to make Valentine's Day all about sex and passion can feel daunting for 1 in 10 women in the US who face difficulty conceiving. Moreover, over the last three decades, women have been waiting longer to start having children. However, when it comes to fertility, age matters; both women and men are at their most fertile in their early twenties. "Over recent years, establishing a career, getting on the...

Spermbots Remotely Controlled By Magnetic Fields
2013-12-15 05:41:05

Brett Smith for redOrbit.com - Your Universe Online A team of German scientists has developed a sperm-based system that could aid in fertilization and drug delivery, according to a new study published in the journal Advanced Materials. New Scientist reports that the system involves placing a bull sperm inside a nanotube. The scientists are then able to remotely control the movements of the sperm using magnetic fields. The speed of the sperm can be controlled be changing the temperature...

Two Y Genes Can Replace Entire Y Chromosome For Assisted Reproduction In Mice
2013-11-21 15:33:20

University of Hawaii at Manoa The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the Y chromosome contribution limited to only two genes: the testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y. "Does this mean that the Y chromosome (or most of it) is no longer needed? Yes, given our current...

2013-04-30 10:32:23

Sperm cell release can be triggered by tightening the grip around the delivery organ, according to a team of nano and microsystems engineers and plant biologists at the University of Montreal and Concordia University. Concordia's nanobiotech team devised a microchip that enabled the University of Montreal biologists to observe what happened when pollen tubes — the sperm delivery tools used by plants — tried to negotiate a microscopic obstacle course. The pollen tubes were exposed...

2013-04-24 16:40:10

Plasma protein fetuin-B regulates hardening of the zona pellucida and thus ensures the fertilization capacity of the ovum Scientists in Mainz and Aachen have discovered a new mechanism that controls egg cell fertility and that might have future therapeutic potential. It was revealed by Professor Dr. Walter Stöcker of the Institute of Zoology at Johannes Gutenberg University Mainz (JGU) that the blood protein fetuin-B plays an important and previously unknown role in the...

2013-04-17 16:26:48

Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at the right time in order to maximize the chance of successful fertilization. New research from Carnegie's Allan Spradling and Jianjun Sun has shed light on how successful ovulation and fertilization are brought about by studying these processes in fruit flies. They found...

Three-Parent Method May Help Eliminate Hereditary Diseases
2013-03-20 18:37:03

Brett Smith for redOrbit.com — Your Universe Online British officials are debating whether or not to legalize new in vitro fertilization (IVF) techniques that would eliminate dangerous hereditary diseases, but would essentially create a child from three different parents. According to the UK´s Human Fertilisation and Embryology Authority (HFEA), a public consultation in 2012 indicated UK citizens mostly support the use of the potentially life-saving technique, despite any...

2013-01-03 13:26:41

Researchers at Imperial and Warwick find molecules that appear to function abnormally in women who have suffered repeated miscarriages. Scientists have identified molecular signals that control whether embryos are accepted by the womb, and that appear to function abnormally in women who have suffered repeated miscarriages. The research, carried out at Imperial College London and the University of Warwick, suggests these signals could be targets for drugs that would help prevent...

Therapeutic Option For Women With Mutant Mitochondrial DNA
2012-12-20 07:08:59

Connie K. Ho for redOrbit.com — Your Universe Online Researchers from the Columbia University Medical Center (CUMC) and the New York Stem Cell Foundation (NYSCF) have been able to create a new technique that limits inherited disorders in children. The ability of scientists to transfer the nucleus of a cell from one human egg cell to another was considered an important achievement, and results of the study were recently published in the online edition of Nature. In particular,...