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Tag: "boys" at biology news

Switching genes to overdrive improves muscular dystrophy symptoms in mice

... their 30s. In the United States, about 400 to 600 boys are born each year with DMD or Becker Muscular Dystrophy, a milder form of the disease. The cause is a mutation, either inherited or occurring spontaneously, that affects a muscle protein called dystrophin. Spiegelman, whose laboratory discovered ...

Pitt study notes decline in male births in the US and Japan

... of Pittsburgh-led study found significantly fewer boys being born relative to girls in the U.S. and Japan, and that an increasing proportion of fetuses that die are male. They note that the decline in births is equivalent to 135,000 fewer white males in the U.S. and 127,000 fewer males in Japan over the ...

Autism gene identified by researchers at Yale working with a global research consortium

...in the United States, affecting four times as many boys as girls. The diagnosis of autism has increased tenfold in the last decade. Phase Two of the Autism Genome Project was also announced to continue the effort to discover the genes that cause the disorder. This second phase represents a $14.5 milli...

Study to explore using magnets to correct 'sunken chest'

...States each year and is three times more common in boys than girls. A UCSF team developed the new procedure, in which a magnet attached to the child's breastbone is coupled with a second one outside the chest that creates a steady, controlled, outward pull on the internal magnet to reshape the bone, ca...

20-year study shows significant rise in childhood obesity, especially among girls

...rther 540 in 2002 ?with equal numbers of girls and boys from each of the three age groups ?four, ten and 1...ear-olds - 22 per cent of girls and 18 per cent of boys - had a BMI of more than 25, compared with one in ten in 1982. Six per cent of four year-old g...

Largest genomic search finds genes that may contribute to autism

...in the United States and affect four times as many boys as girls. "These findings are a piece of the puzzle. As we identify these genes we will be able to screen young children for autism at an early age and begin interventions earlier, which can have a dramatic effect for some children," Dawson said....

Severe mental retardation gene mutation identified

...ic samples from 250 families in which at least two boys have mental retardation to help identify novel genes that cause X-linked mental retardation. The investigators systematically analyzed the X chromosome for gene mutations. Dr. Raymond says that the families are receiving information from the stu...

Like salty food? Chances are you had low blood sodium when you were born

...etary sodium intake in both ethnic groups and both boys and girls. the 14 children with the most severe NLS (serum sodium no relationship was found between neonatal lowest serum sodium and a preference for salt per se. Rather, the preference was for the foods that contain it. gestational ...

Bad blood between boys and girls

...ant toxoplasmosis are more likely to give birth to boys than women who are Toxoplasma negative, according ...hat Toxoplasma positive mothers gave birth to more boys than did Toxoplasma negative women. The probability of a male birth also increased, up to two boys ...

Male circumcision reduces HIV risk, study stopped early

...ns safely. "Already, there are large numbers of boys and young men who are seeking circumcision in areas of Africa where men are not traditionally circumcised," he said. "The danger is that unqualified practitioners will fill a niche by providing circumcision, but with much higher complication rates." ...

New HIV study identifies high-risk subgroups of adolescents

...and that the patterns seem to be different between boys and girls. It's also important because it suggests...ee patterns of risk behavior among 1,153 high-risk boys and three patterns among high-risk girls ages 15-21 in Atlanta, Miami, and Providence. They found th...

Psychotropic drug prescriptions for teens surge 250 percent over 7 year period

..., one in every ten of all office visits by teenage boys led to a prescription for a psychotropic drug. Other findings in the study show that a diagnosis of ADHD was given in about one-third of office visits during the study period. Also, between 14 and 26 percent of visits in which psychotropic medication...

UCLA scientists discover immune response to HIV differs, even in identical twins

...hat it does not fit into those receptors. "These boys are as similar as two humans can be, yet we see differences in how they fight the virus," said Dr. Paul Krogstad, professor of pediatrics and pharmacology, and one of the researchers. "That's one more thing that makes it difficult to develop a vaccin...

Womb needed for proper brain development

... The results are based on a study of 80 premature boys and girls whose birth weight was less than 1,000 grams (about 2.2 pounds), and who were born just 26 weeks into a normal 40-week pregnancy. Clinical ultrasounds of the premature infants' brains were done at birth and again when they were discharged f...

Gene therapy works in mice to prevent blindness that strikes boys

...rders. Retinoschisis is usually first detected in boys between 5 and 10 years of age when their vision pr...he right eyes of 15-day-old male mice, which, like boys with the disease, don't have the healthy gene to maintain the retina. In terms of disease developmen...

Study hints at role of stem cell genes in testicular, breast cancers

...ich are located in the testis and produce sperm in boys following puberty. Germ cells, like all cells of the body, develop from embryonic stem cells, and go through a multi-stage evolution in their structure and genetic activity before attaining their mature state. The study revealed that the genetic misr...

Beauty queens urge girls not to sacrifice their bones

... Maximum bone development takes place in girls and boys roughly between ages 11-17. By building peak bone mass during this period, young people "invest in their bones" and reduce the risk of fracture later in life, noted Professor Ghassan Maalouf, an IOF Board member from Lebanon who spoke about the impor...

A novel virus for croup

...s in croup, such as the relative susceptibility of boys to the disease, its peak occurrence in the second year of life and its predominance in late autumn and earlier winter, that are matched by patterns of HCoV-NL63 occurrence. This systematic association of croup with HCoV-NL63 is particularly timely ...

Newly discovered genetic disease sheds light on body's water balance

Two infant boys whose bodies were overloaded with excess fluid hav...ously. The fact that the two affected patients are boys is not a coincidence, as the AVPR2 gene is X-linked and only inherited from the mother's side, but n...

How the environment could be damaging men's reproductive health

...in Y chromosome sperm would lead to an increase in boys being born, or what might be the mechanism involve...l testes. The Lithuanian study investigated 1,204 boys born in one hospital in Lithuania between October 1996 and November 1997. The boys were examined at ...

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