Scientists say they have successfully made immature sperm cells from human bone marrow samples.
If these can be grown into fully developed sperm, which the researchers hope to do within five years, they may be useful in fertility treatments.
But experts have warned the findings from the German study should be interpreted with caution at this very early stage.
And proposed new laws would ban their use in fertility treatments in the UK.
Richard JohnsonMarket Day
Fri, 13 Apr 2007 12:23 UTC
Critics have asserted that the Bush Administration has used politicalpressure and a brilliant public relations strategy to define their ownbrand of science during George Bush, Jr.'s term as U.S. president.
According to findings released by two public interest groups, scientistsand staff members working for the Food and Drug Administration saypolitical and commercial pressures are compromising their mission toprovide truthful and accurate public health and safety information.
The Union of Concerned Scientists and Public Employees for EnvironmentalResponsibility said their survey of 997 FDA staff members suggests the"culture of science is under attack and struggling at the FDA."
SEATTLE - Druggists who believe "morning-after" birth control pills are tantamount to abortion can't stand in the way of a patient's right to the drugs, state regulators have decided.
Much of the research surrounding childhood asthma has sought new approaches to managing the disease. However, little was done to address other conditions that often appear along with asthma including depression and Attention Deficit Hyperactivity Disorder (ADHD), which can negatively affect a child's ability to cope. Research completed at the University of Virginia Children's Hospital asserts that until these extra conditions or "co-morbidities" are addressed, asthma education programs will not be able to help young patients to the fullest. The results will be published in the April 12 issue of The Journal of Developmental and Behavioral Pediatrics.
"We can definitively state that families with asthmatic children not only report higher incidences of ADHD, but also of depression, anxiety and learning disabilities," said Dr. James Blackman, developmental pediatrician at the Kluge Children's Rehabilitation Center at UVa Children's Hospital and lead study author. "If we can manage these co-morbidities, we can better help children with asthma and their families to manage the disease in the healthiest way possible."
ATLANTA - The sexually transmitted disease gonorrhea is now among the "superbugs" resistant to common antibiotics, leading U.S. health officials to recommend wider use of a different class of drugs to avert a public health crisis.
School bullying affects majority of elementary students
Nine out of 10 elementary students have been bullied by their peers, according to a simple questionnaire developed by researchers at Lucile Packard Children's Hospital and the Stanford University School of Medicine. What's more, nearly six in 10 children surveyed in the preliminary study reported participating in some type of bullying themselves in the past year.
As in childhood, it is in adulthood. Bullies grow up and manage to get into government with dire consequences for the world population. The study of grown-up 'bullies' in power is better known as Political Ponerology
A study by Ceylan, et al from Turkey evaluated their experience in 48 cases of severe complications of circumcisions. Their patient's ages ranged from 5 months to 24 years with the mean age of 14 years. These circumcisions were performed at various centers or during religious ceremonies in environments other than health facilities.
The group found that the most commonly observed complication was preputio-glandular fusion that was seen in 25 cases (52%.). The other complications were as follows: meatal stenosis in 11 (23%); urethral fistula in 5 (10.4%); partial glandular amputation in 4 (8%); and a distal urethral fistula in 3 (6%). Lysis of adhesions and revisions were performed in all cases of preputio-glandular fusion. The patients with meatal stenosis underwent meatotomies. The urethral fistula cases were repaired by simple closure and not a hypospadias type repair. Partial glans amputations were patched only with buccal mucosa. There was one patient with a completely open distal urethra that appeared to be more of a megameatus in my interpretation that was repaired by a Mathieu in a tabularized incised plate urethroplasty type technique.
Nanci HellmichUSA Today
Tue, 10 Apr 2007 17:42 UTC
The prevalence of American adults who are 100 or more pounds over a healthy weight has risen dramatically since 2000, a study released Monday shows.
About 3% of people, or 6.8 million adults, were morbidly obese in 2005, up from 2% or 4.2 million people in 2000, says Roland Sturm, an economist with the RAND Corp., a non-profit think tank.
"One day, I told my father 'I realized that to write an "R" ones starts writing a "P", later drawing a line to complete the letter. Later I was surprised to discover that I could transform a yellow letter into an orange one by adding only a line."
The great majority of us will never understand the sensation which the author Lynne Duffy wrote about in her work Blue Cats and Chartreuse Kittens. In spite of that, according to recent studies by Dr. Jamie Ward of College University, London, we all possess a small degree of this rare quality of intermixing images, sounds and other sensations, called "synesthesia."
Synesthesia, branded in the past as a result of mental disorder, drug addiction, or excessive imagination, today is studied in the field of neurology as a peculiar capacity possessed by some individuals for associating, before a determinate stimulus, sensations apparently unconnected or belonging to another sense. It is such that synesthetes can hear a certain sound when contemplating a work of art, evoke a certain taste when touching the surface of something, or smell a characteristic aroma when listening to a melody. Strange? Yes; but real without a doubt.
Foods rich in cocoa appear to reduce blood pressure but drinking tea may not, according to an analysis of previously published research in the April 9 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
Current guidelines advise individuals with hypertension (high blood pressure) to eat more fruits and vegetables, according to background information in the article. Compounds known as polyphenols or flavonoids in fruits and vegetables are thought to contribute to their beneficial effects on blood pressure and cardiovascular risk. "Tea and cocoa products account for the major proportion of total polyphenol intake in Western countries," the authors write. "However, cocoa and tea are currently not implemented in cardioprotective or anti-hypertensive dietary advice, although both have been associated with lower incidences of cardiovascular events."
Dirk Taubert, M.D., Ph.D., and colleagues at the University Hospital of Cologne, Germany, conducted a meta-analysis of 10 previously published trials, five of cocoa's effects on blood pressure and five involving tea. All results were published between 1966 and 2006, involved at least 10 adults and lasted a minimum of seven days. The studies were either randomized trials, in which some participants were randomly assigned to cocoa or tea groups and some to control groups, or used a crossover design, in which participants' blood pressure was assessed before and after consuming cocoa products or tea.