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Preview: Brightsurf Science News :: Embryology News

Embryology Current Events and Embryology News from Brightsurf

Embryology Current Events and Embryology News Events, Discoveries and Articles from Brightsurf

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Fossil orphans reunited with their parents after half a billion years

Tue, 12 Dec 17 00:01:40 -0800

Everyone wants to be with their family for Christmas, but spare a thought for a group of orphan fossils that have been separated from their parents since the dawn of animal evolution, over half a billion years ago.

Exceptionally preserved eggs and embryos reveal the life history of a pterosaur

Fri, 01 Dec 17 00:07:20 -0800

Dr. WANG Xiaolin, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences, and his team reported on hundreds of three-dimensional (3-D) pterosaur eggs of the species Hamipterus tianshanensis from a Lower Cretaceous site in the Turpan-Hami Basin, 16 of which contain embryonic remains, allowing for an unexpected look at the embryology and reproductive strategy of these flying reptiles.

Study finds women underweight in teens, mid-30s are at greater risk of early menopause

Wed, 25 Oct 17 00:12:10 -0700

A new study from epidemiologists at the University of Massachusetts Amherst published today reports, based on a study of nearly 80,000 women, that underweight women and those who were underweight as teenagers or in their mid-30s are at greater risk of early menopause compared to lean or normal weight women. Early menopause is defined as naturally occurring menopause before age 45.

Genome editing reveals role of gene important for human embryo development

Wed, 20 Sep 17 00:08:20 -0700

Researchers have used genome editing technology to reveal the role of a key gene in human embryos in the first few days of development. This is the first time that genome editing has been used to study gene function in human embryos, which could help scientists to better understand the biology of our early development.

UMass Amherst study suggests father's environmental exposure affects sperm epigenetics

Tue, 12 Sep 17 00:16:10 -0700

The authors believe theirs is among the first human studies to investigate the influence of phthalate exposure on sperm epigenetics, embryo development and whether DNA methylation in sperm cells may be a path by which a father's environmental exposure influences these endpoints. DNA methylation, one mechanism of epigenetics, is a chemical tag on DNA that does not change the gene sequence but is involved in controlling gene expression.

Older wombs linked to complications in pregnant mice

Tue, 05 Sep 17 00:06:00 -0700

Deciding to start a family later in life could be about more than just the age of your eggs. The risks of complications during pregnancy all increase with age. A new study our today is one of the first to look at the effects of age on womb health. The results, which studied pregnant mice of different ages, showed that ageing of the womb itself can contribute to an increased risk of complications.

New microscope technique reveals internal structure of live embryos

Tue, 08 Aug 17 00:15:30 -0700

University of Illinois researchers have developed a way to produce 3-D images of live embryos in cattle that could help determine embryo viability before in vitro fertilization in humans.

Is 'ovarian tissue freezing' superior to egg freezing?

Thu, 13 Jul 17 00:14:10 -0700

Many women are turning to egg freezing to promote fertility, but what happens when it isn't an option because of special medical conditions? And, what option is there for women who want to preserve hormonal function, not just fertility? Ovarian tissue freezing can deliver these outcomes but has been considered experimental until now. According to a new study, nearly 4 out of 10 women who undergo the procedure are able to have children later on.

An experimental technique analyses the functioning of human sperm before being inseminated

Wed, 05 Jul 17 00:14:40 -0700

The work of the Centre for Genomic Regulation (CRG) and Eugin Group succeeds in observing the fertilization capacity of the sperm cell before its insemination in the oocyte. Researchers put male gametes in contact with the cytoplasm of female animal gametes to see if they perform their functions properly. The technology studies the incidence of sperm morphology, concentration, and motility in the embryo formation process.

Viral vectors for gene transfer travel longer distances in the brain than thought

Fri, 16 Jun 17 00:04:10 -0700

Gene transfer with laboratory-produced viruses is seen as a hopeful therapy for Alzheimer's and Parkinson's patients. A team from Vetmeduni Vienna investigated how far these viruses spread in the brain and which cells they infect. Some of these viruses travelled from injection site as far as the olfactory bulb or the cerebellum and infected neurons and other cells. This could improve selection of viral vectors for custom therapies using gene transfer. Histochemistry and Cell Biology