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Woman with two wombs gives birth to miracle twins

A Florida woman with a rare medical condition has delivered twins -- one from each of her two uteruses. The 24-year-old mother, Andreea Barbosa and her husband, Miguel, conceived the twins without reproductive medicine. Nathan and Natalie Barbosa were born Sept. 15 at Morton Plant Hospital in Clearwater. They join 2-year-old sister, Izabella.

21 Sep 2011

Scientists uncover one of the benefits of non-monogamous relationships

It's all about the grandkids! That's what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair.

3 Sep 2011

Dad's stress can affect unborn children

Does Dad's stress affect his unborn children? According to the results of a new study in Elsevier's Biological Psychiatry, it seems the answer may be "yes, but it's complicated".

31 Aug 2011

Stanford method identifies essential regions of Caulobacter's genome

A team at the Stanford University School of Medicine has cataloged, down to the letter, exactly what parts of the genetic code are essential for survival in one bacterial species, Caulobacter crescentus.

31 Aug 2011

Tiny molecule could bind to B cell EB12 receptor and prevent cancer

Infection with Epstein Barr means that the B cells, which are the primary memory cells of the immune system, are hi-jacked. When the virus has penetrated, researchers observe an excess of a special bio-antenna, a receptor known as EB12, suddenly sprouting from the surface of the B cells. But why they do so remains a mystery.

22 Aug 2011

Scientists uncover how human egg captures sperm to begin fertilisation process

Researchers have uncovered exactly how a human egg captures an incoming sperm to begin the fertilisation process, in a new study published this week in the journal Science.

19 Aug 2011

UC Riverside research could help prevent crop loss, pest outbreaks

New research by scientists at the University of California, Riverside shows that evolution - genetic changes in populations over time - can occur so rapidly in organisms that its impact on population numbers and other aspects of biology can be seen within just a few generations.

17 Aug 2011

Young stressed females can impair future offspring, also improve resilience

The study found that stress experienced by young female rats can impair their future offspring, but can also improve resilience. The study also showed that providing the young stressed females with an enriched environment, can indeed ameliorate some of the effects.

17 Aug 2011

New study focuses on Anopheles gambiae to prevent spread of malaria

A female mosquito cannot tell if the male that she has mated with is fertile or 'spermless' and unable to fertilise her eggs, according to a new study from scientists at Imperial College London.

9 Aug 2011

New finding about cell metabolism may have implications for neurodegenerative disorders

Cells are the building blocks of the human body. They are a focus of scientific study, because when things go wrong at the cellular and molecular level the consequences for human health are often significant.

8 Aug 2011

Nottingham animal scientist receives 'Marshall Medal' for fertility and reproduction study

A leading University of Nottingham animal scientist has been awarded one of the most prestigious medals in the field of animal reproductive biology.

3 Aug 2011

New insights into genesis and development of Sézary syndrome

Scientists at Charité - Universitätsmedizin Berlin, Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, the Max-Planck-Institut für Molekulare Genetik Berlin, and four other German institutes succeeded in proving a specific gene loss in a certain human lymphoma, the genesis of which is largely unexplained to date.

3 Aug 2011

IRCM geneticists discover an unsuspected organization of pituitary cells

A team of geneticists at the Institut de recherches cliniques de Montr-al (IRCM), directed by Dr. Jacques Drouin, made an unexpected discovery on hormone secretion. Contrary to common belief, the researchers found that pituitary cells are organized in structured networks. The scientific breakthrough was published yesterday by the scientific journal Proceedings of the National Academy of Sciences.

28 Jul 2011

Dilemma of single vs. double embryo transfers

Elsevier announced the publication of several commentaries in the scientific journal Reproductive BioMedicine Online on the subject of how many embryos it is safe and proper to place in a uterus, and how best to regulate this decision. It is a dilemma faced by all patients anxiously caught between no pregnancies at all or facing the prospect of twins or triplets. In this difficult place it is often all too easy to think that the latter option must be the best. But is it?

28 Jul 2011

Carcinogenesis is just another form of speciation, proposes new theory

Cancer patients may view their tumors as parasites taking over their bodies, but this is more than a metaphor for Peter Duesberg, a molecular and cell biology professor at the University of California, Berkeley.

27 Jul 2011

World's best genetic map now built in African-Americans

A group of researchers from the University of Oxford, Harvard Medical School and the University of Mississippi Medical Center has constructed the world's most detailed genetic map, a tool scientists can use to better understand the roots of disease and how DNA is passed generationally to create diversity in the human species.

21 Jul 2011

Being an alpha male stressful: Primate study

A nine year old tracking study of five troops of baboons in Kenya found that the top-ranked alpha males had more stress than the second-place beta males. In fact the top baboon was just as ‘on-edge’ as those unfortunate primates at the bottom of the pecking order. Thore Bergman, a biological psychologist at the University of Michigan who was not involved in the study said, “Being at the top may not be all it's cracked up to be.”

14 Jul 2011

'Sex' between viruses can create new influenza pandemic

A new University of Maryland-led study finds that 'sex' between the virus responsible for the 2009 flu pandemic (H1N1) and a common type of avian flu virus (H9N2) can produce offspring -- new combined flu viruses -- with the potential for creating a new influenza pandemic.

14 Jul 2011

Maternal smoking during pregnancy causes serious birth defects

To dispel any uncertainty about the serious harm caused by smoking to babies and pregnant women, the first-ever comprehensive systematic review of all studies over the past 50 years has established clearly that maternal smoking causes a range of serious birth defects including heart defects, missing/deformed limbs, clubfoot, gastrointestinal disorders, and facial disorders.

12 Jul 2011

Study confirms link between phthalates and thyroid hormone levels in humans

A link between chemicals called phthalates and thyroid hormone levels was confirmed by the University of Michigan in the first large-scale and nationally representative study of phthalates and BPA in relation to thyroid function in humans.

12 Jul 2011