Twins News and Research

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Smoking during pregnancy linked to childrens' anti-social behaviour

It has been well documented that smoking during pregnancy can harm the developing baby, but now, according to researchers, women who smoke during pregnancy may increase the risk of their child displaying anti-social behaviour.

2 Aug 2005

IVF treatment to restrict women to one embryo only each time

In order to avoid the dangers of multiple births, women having in vitro fertilisation may be limited to having just one embryo implanted at a time.

29 Jul 2005

If you're a worm, and stressed as well - its not good!

According to U.S. scientists how well you respond to stress predicts how long you will live, at least if you are a worm.

27 Jul 2005

Mate Choice and Friendship in Twins: Evidence for Genetic Similarity

How alike are you and your husband or wife - or, you and your best friend? Probably more alike than you realize. A study of twins shows that people's spouses and best friends are much more similar to them than was previously recognized - about as close as brothers and sisters. The research also suggested that the preference for partners who are similar to us is partly due to our genes.

26 Jul 2005

Working class twins fare worse than their professional sibs on blood pressure, cholesterol and self-rated health

Nancy Krieger, professor of society, human development and health at the Harvard School of Public Health and colleagues, compared the health status, education levels and adult occupational class among women who were identical twins and who lived together through adolescence, to demonstrate that adult socioeconomic conditions affect adult health, above and beyond genetics and early life conditions.

26 Jul 2005

New insight into age-related macular degeneration

Age-related macular degeneration is the leading cause of blindness in older adults, yet researchers are still in the dark about many of the factors that cause this incurable disease.

25 Jul 2005

Study offers a unique perspective on the beginnings of the alcohol experience and usage patterns of 12-year-olds

Clues looking into the root causes of alcoholism are emerging from new findings that center on the genetic patterns of young drinkers, with particular focus on why adolescents are more likely to drink large quantities of alcohol even if they need more alcohol to get the effects they desire.

25 Jul 2005

Two regions of the human genome that appear to explain variation in IQ

It may be that IQ tests are not the only way to measure human intelligence. Scientists at The Queensland Institute of Medical Science (QIMR) have identified two regions of the human genome that appear to explain variation in IQ. Their work was published this week in the American Journal of Human Genetics and has drawn world-wide interest.

19 Jul 2005

Shared-environmental influences on gender-role behaviour may be more important in early childhood than in adolescence and adulthood

Whether little boys prefer to play with trucks or dolls depends more on the family environment than genetics, while genetics seems to play a larger role in little girls' preferences for dolls over trucks, according to a study published in the July/August 2005 issue of the journal Child Development.

14 Jul 2005

Canadian researchers look at origins of social aggression

Anyone who has watched a clique of third-grade girls overtly ignore another little girl understands the hurt this type of aggression - called social aggression - can inflict upon others.

14 Jul 2005

Identical twins lose some fundamental similarities as they grow older

...a new study reports. They may start to look and act less alike. The changes could leave one twin susceptible to diseases like cancer, while the other twin remains healthy.

11 Jul 2005

Genes play an overriding role in cholesterol response

Why does it seem like some people can eat all the ice cream they want without increasing their cholesterol or gaining much weight, while others with high cholesterol have to watch their diets like a hawk? Because no matter what their lifestyle, people's genes play an overriding role in their cholesterol response.

11 Jul 2005

Genes decide the shape you're in!

According to a study by researchers at the Lawrence Berkeley National Laboratory of identical twins, the reason why some people can eat all the chocolate and chips they want and not increase their cholesterol levels, is all down to their genes.

11 Jul 2005

Relationship between weight loss and health needs closer inspection

Although it seems obvious that when overweight people lose weight their health should improve, the relationship between weight loss and health may not be as simple as that, suggests previous studies from Finland and Denmark.

29 Jun 2005

Uncomplicated twin pregnancies might be more risky than previously thought

As mothers get older and assisted conception becomes more common, the incidence of multiple births - primarily of nonidentical siblings, but also of identical ones - has dramatically increased.

28 Jun 2005

Triplet pregnancies cost more than eight times as much as singleton pregnancies

Research in France has revealed that triplet pregnancies cost more than eight times as much as singleton pregnancies, and twin pregnancies cost more than three times as much, the 21st annual conference of the European Society of Human Reproduction and Embryology heard.

27 Jun 2005

Proof that single embryo transfer (SET) produces babies that are healthier than those born after multiple implantations

Two studies presented today (Tuesday 21 June 2005) at the 21st annual conference of the European Society of Human Reproduction and Embryology provide further proof that single embryo transfer (SET) produces babies that are healthier than those born after multiple implantations.

20 Jun 2005

Early exposure to inflammatory disease multiplies Alzheimer's risk

A new study of dementia in identical twins suggests that exposure to inflammation early in life quadruples one's risk of developing Alzheimer's disease.

19 Jun 2005

Specific genetic linkages to bipolar disorder

Despite an intensive effort, researchers have yet to identify the genes that cause bipolar disorder, yet the practical benefits of such a discovery could reap rich rewards for those suffering from the mental illness.

16 Jun 2005

Jumping genes help detemine uniqueness of individual brains

Scientists at the Salk Institute for Biological Studies may have found one explanation for the puzzling variety in brain organization and function: mobile elements, pieces of DNA that can jump from one place in the genome to another, randomly changing the genetic information in single brain cells.

15 Jun 2005