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Tag: "copies" at medical news

Study holds promise for new way to fight HIV

...nges in, the HIV genetic code every time the virus copies itself. By doing so, A3G corrupts the HIV gene code and prevents the virus from reproducing. However, the HIV virus overcomes this difficulty with the help of viral infectivity factor (Vif) that directs the body to destroy A3G. HIV is then free to ov...

Risk of colon cancer to be assessed by simple blood test

...ive percent to 10 percent of people, however, both copies of the gene are turned on -- a problem called loss of imprinting, leading to cancer formation. The attempt is based on the fact that five percent to 10 percent of people have improper control of a growth-promoting gene called insulin-like growth fac...

Genetic Eye Disorder Can Have Other Implications

...e head, face, and brainstem. Mice that lack both copies of HOXA1 universally die. Until this study, no hum...igators, have found living people with two mutated copies of HOXA1 -- from three different parts of the world. Researchers had been studying genetic disorder...

Cell molecules behind neuro degenerative diseases

...tter within the cell’s nucleus asking for multiple copies of the amino acid glutamine, a building block of protein structure. These disorders are collectively known as polyglutamine diseases. Along with Huntington’s, these diseases include spinobulbar muscular atrophy; spinocerebellar ataxia types 1, 2, 3,...

Gene Fusion Test to screen children’s with Acute Lymphoblastic Leukemi

...d better outcomes than others. Those with multiple copies of runx 1 had some of the poorest outcomes. "It's an important confirmatory test to the traditional method of cytogenetics, which looks at chromosome numbers and structure.”As a result of our work, doctors now use these three gene fusion tests as s...

Co-infection of Two genetic diseases makes them susceptible to malaria

...le disease, which occurs when someone inherits two copies of the sickle gene, one from each parent.) Studies have shown that when children with the sickle trait are exposed to malaria, they suffer far fewer parasites and are 90 percent less likely to be hospitalized by a malaria infection than those without...

Bacteria Evolve Armamentarium Against Antibiotics By ‘Stealing’ Gens

...ed to just one addition by gene duplication, where copies of genes are made by accident and then altered over time. The bacterium had genes in its metabolic network that it had pirated from near relatives, including those that enable it to defend itself against antibiotics. The researchers found that the ...

Passive Smoking Makes Kids Prone To Respiratory Illness

...ldren had a variation in at least one of their two copies of the TNF-alpha gene. They collected a variety ...rs began looking at TNF-alpha. Each person has two copies of the TNF-alpha gene. In one important spot on the gene, some people have the base known as 'G'; ot...

New protein diet program questioned.

...n this diet. This best seller sold half a million copies in Australia. The diet said that 30-35% of one’s energy requirements should be provided by proteins than the 15% that was initially obtained. Hence people should include more amounts of fish and meat in their already existing diet. But on the oth...

Little Known DNA Repair Enzyme May Be A Tumor Suppressor Gene

...ng DNA—generally have the ability to make accurate copies of strands of DNA, damaged areas, called lesions, can bring this replication machinery to a complete halt in certain areas. In the last few years, scientists have learned of the existence of several so-called lesion-replicating polymerases that can o...

CCR5 Mutation Confers Immunity Against HIV But Not Against West Nile Virus Illness

... North American whites there is a mutation in both copies (are homozygous) of the gene and hence they don’t ...amples from Arizona were from patients who had two copies of the CCR5 mutation. But only 0.7% showed the presence of 2 copies in case of the control group (14...

Genes May Determine Craving For Cigarettes

...oughly one-quarter of the participants carried two copies of the normal form of the gene, CYP2A6*1 and that ...packs a day on average. Smokers who carried two copies of the CYP2A6*4 gene, which results in slower nicotine metabolism, smoked the least. The study also ...

New Research Points To Prevention Of Mad Cow Disease

...netic engineering was then used to produce several copies of the silenced gene, in the successive goat cell lines. A cloned goat that had nearly 90% knock down of the PrP protein was produced using nuclear transfer technique. The results of this path breaking study can be found in the current Proceedings of...

Battery power from viruses in the pipeline

...aterial, we can easily clone millions of identical copies of the virus to use in assembling our batteries. The nanoscale materials we've made supply two to three times the electrical energy for their mass or volume, compared to previous materials." The advantage of this technology is that in the future ca...

Fat Facts: Obesity Traced To the Genes

..., and the team discovered that the presence of two copies of a certain gene variant increased the chances of that person being obese, as the BMI was higher than normal. As is the norm, a BMI of 30 or more is considered obese and a BMI of 25 or more is considered overweight. Not satisfied with these results...

Obesity: Blame It On The Genes

..., and the team discovered that the presence of two copies of a certain gene variant increased the chances of that person being obese, as the BMI was higher than normal. As is the norm, a BMI of 30 or more is considered obese and a BMI of 25 or more is considered overweight. Not satisfied with these results...

Mouse Models To Determine The Cause Of Aggressive Leukemia

... of a mutation called Bcr-Abl and the loss of both copies of the tumor suppressor gene Arf in bone marrow ce...hat received transformed pre-B cells that had both copies of the Arf gene intact were highly resistant to disease development. However, mice injected with cel...

Anemia from Malaria Linked to a Protein MIF

...m invades liver and red blood cells and makes more copies of itself. Eventually, as red cells break and free plasmodium to infect other cells, and as the body's immune system works to kill infected cells, the total number of red blood cells drops, causing anemia. But not everyone infected with malaria dev...

Gene Variants Linked to Early Heart Attack Discovered

...eager to screen the population for people with two copies of this gene and study its action at the molecular level," Kane said. "VAMP 8 could be a target for a new drug." Large scale studies like this one, with well-characterized samples from carefully selected patients, hold significant promise to enabl...

Anti-Sense Drugs and Nanotechnology Offer New Hope In Cancer Fight

...ation in a gene results in excessive production of copies of certain proteins that can pave way for cancer and other disorders. The conventional drugs target these excess or harmful proteins while the new generation drugs (antisense drugs) target the genetic material itself, inhibiting production of the h...

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