Marijuana Affects The Index IQ

Marijuana Affects The Index IQ.
A altered analysis challenges preceding research that suggested teens put their long-term brainpower in danger when they smoke marijuana heavily. Instead, the breakdown indicated that the earlier findings could have been thrown off by another factor - the effect of inadequacy on IQ. The author of the new analysis, Ole Rogeberg, cautioned that his theory may not hold much water. "Or, it may revolution out that it explains a lot," said Rogeberg, a research economist at the Ragnar Frisch Center for Economic Research in Oslo, Norway.

The authors of the opening study responded to a plea for comment with a joint statement saying they stand by their findings. "While Dr Rogeberg's ideas are interesting, they are not supported by our data," wrote researchers Terrie Moffitt, Avshalom Caspi and Madeline Meier. Moffitt and Caspi are constitution professors at Duke University, while Meier is a postdoctoral confidant there.

Their study, published in August in the Proceedings of the National Academy of Sciences, attracted media notice because it suggested that smoking cook-pot has more than short-term effects on how people think. Based on an assay of mental tests given to more than 1000 New Zealanders when they were 13 and 38, the Duke researchers found that those who heavily reach-me-down marijuana as teens lost an average of eight IQ points over that time period.

It didn't seem to trouble if the teens later cut back on smoking pot or stopped using it entirely. In the direct term, people who use marijuana have memory problems and trouble focusing, research has shown. So, why wouldn't users have problems for years?

Another Type Of Congenital Heart Disease May Be Cured By The Device And The Surgery

Another Type Of Congenital Heart Disease May Be Cured By The Device And The Surgery.
A congenital verve escape that was typically ruinous three decades ago is no longer so deadly, thanks to new technologies and surgical techniques that appropriate babies to survive well into adulthood, researchers report. A study in the May 27 emerge of the New England Journal of Medicine compares the effectiveness of older and newer versions of devices aimed at fixing incompletely formed hearts. The haunt finds both performing equally well over three years.

It's a "landmark" study, "one that we've never had before in congenital resolution disease," said Dr Gail D Pearson, governor of the Adult and Pediatric Cardiac Research Program at the US National Heart, Lung and Blood Institute, which financed the effort. The study, which compared two devices for keeping oxygen-carrying blood flowing in 549 children born with hearts incapable of doing it alone, has not yet produced exhaustive results favoring one ploy over the other.

But the study is in effect just beginning. "Continuing follow-up will help us sort out the near- and long-term results". Study maker Dr Richard G Ohye, head of the University of Michigan pediatric cardiovascular surgery division, agreed. "Well be able to follow them to adulthood, and they will train us about the best way to function them". The children in the study were born with hearts that had a nonfunctioning - or nonexistent - Heraldry sinister ventricle, the chamber that pumps blood to the body. About 1000 such children are born in the United States each year, one in 5000.

For The Early Diagnosis Of HIV Can Use Genetic Techniques

For The Early Diagnosis Of HIV Can Use Genetic Techniques.
In a attainment to renovate the methods for early detection of HIV, researchers sought to learn if a program using "nucleic acid testing" (NAT) would increase the number of cases that could be detected early, and found that it did so by 23 percent. Nucleic acid tests looks for traces of genetic resources from an infecting organism. This differs from standard detection methods that rely on spotting protected system antibodies to the pathogen.

Despite decades of prevention programs in the United States, the HIV quantity rate has remained stable, the study authors noted in a University of California, San Diego statement release. The earliest stages of HIV infection are when people are most likely to infect others, so at cock crow and accurate detection is crucial in efforts to control the spread of HIV, the virus that causes AIDS.

High Doses Of Aspirin Reduce The Accuracy Of Colorectal Cancer Tests

High Doses Of Aspirin Reduce The Accuracy Of Colorectal Cancer Tests.
Stool tests that can catch blood from colorectal tumors are more scrupulous for patients on a low-dose aspirin regimen, which is known to increment intestinal bleeding, a new study suggests. While healing aspirin use was once feared to skew the results of fecal occult blood tests, or FOBTs, German researchers found the assess was significantly more sensitive for low-dose aspirin users than for non-users. Future studies confirming the results could persuade to recommendations to take small doses of aspirin before all such tests, gastroenterology experts said.

Aspirin's blood-thinning properties prod some doctors to prescribe low-dose regimens (usually 75 mg up to 325 mg) to those at peril of cardiovascular events such as heart attacks. "We had expected that kind-heartedness was higher - that is, that more tumors were detected," said possibility researcher Dr Hermann Brenner, a cancer statistics expert at the German Cancer Research Center in Heidelberg, Germany. "The surprising denouement was how strongly sensitivity was raised".

The study, conducted from 2005 to 2009, included 1979 patients with an middling age of 62; 233 were perfect low-dose aspirin users, and 1746 never used it. Researchers analyzed the receptivity and accuracy of two fecal occult blood tests in detecting advanced colorectal neoplasms, tumors that can either be pernicious or benign. Participants were given stool collection instructions and devices, including bowel drawing up for a later colonoscopy to verify results of the FOBTs. They self-reported aspirin and other medication use in standardized questionnaires.

Advanced tumors were found in the same proportion of aspirin users and non-users, but the sensitivity of both stool tests was significantly higher amongst those taking low-dose aspirin - 70,8 percent versus 35,9 percent appreciativeness on one test and 58,3 percent versus 32 percent on the second. "The uprightness of stool tests in early detection of large bowel cancer is the detection of usually very paltry amounts of blood from the tumors. Use of low-dose aspirin facilitates this detection". His analysis is reported in the Dec 8, 2010 issue of the Journal of the American Medical Association.

New Treatments For Asthma

New Treatments For Asthma.
Researchers reply they've discovered why infants who tangible in homes with a dog are less likely to develop asthma and allergies later in childhood. The span conducted experiments with mice and found that exposing them to dust from homes where dogs live triggered changes in the community of microbes that material in the infant's gut and reduced immune system answer to common allergens. The scientists also identified a specific species of gut bacteria that's important in protecting the airways against allergens and viruses that cause respiratory infections, according to the study published online Dec 16, 2013 in the Proceedings of the National Academy of Sciences.

While these findings were made in mice, they're also odds-on to interpret why children who are exposed to dogs from the time they're born are less seemly to have allergies and asthma, the University of California, San Francisco (UCSF) and University of Michigan researchers said. These results also suggest that changes in the sack bacteria community (gut microbiome) can impress immune function elsewhere in the body, said study co-leader Susan Lynch, an accessory professor in the gastroenterology division at UCSF.