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Tag: "blocking" at medical news

Man against HIV – new vaccine ready for human trials

...h is a key building block of the dreaded virus. By blocking the TAT protein the scientists hope to stop the growth of the virus inside the human body. So they say this vaccine will be effective even in old cases of HIV. All eyes are now on the results of human testing of this vaccine to see how effective this...

A sunscreen from the sea

...1980s, AIMS discovered a natural ultra-violet (UV) blocking compound in reef corals.// "We believe that within a very few years the coral sunscreen could displace the range of UV-B blockers now in use. The future market in global terms for the new compound and its formulations is estimated at several hundred...

Bayer Voluntarily Withdraws BAYCOL - A Drug Associated With 50 Deaths

...a statin group of drugs that lowers cholesterol by blocking enzymes that are essential in the synthesis of cholesterol in the body. Bayer Pharmaceuticals has voluntarily recalled its cholesterol drug Baycol( cerivastatin ) because // it has been linked to approximately 50 deaths. Baycol can cause a muscular ...

Flaxseed fights cancer risk

...d to breast cancer and lignans may lower levels by blocking oestrogen synthesis. Researchers at the University of Minnesota have studied the effect of flaxseed supplementation in a group of 28 postmenopausal nuns - chosen because of their strict dietary practices. They were given either zero, five or ten gram...

A new growth factor identified

... to grow, they have also sought to fight cancer by blocking VEGF's action.Unlike VEGF, the researchers also found that EG-VEGF only acts on cells that line the capillaries of the endocrine glands. According to Dr.Napoleone Ferrara, one of the study authors, they believe that EG-VEGF was implicated in the pat...

Therapy for stopping the spread of cancer cells

... neighbours and spread. So there's a potential for blocking this enzyme, known as GnT-V, with drugs and this may form the basis of a new therapy for stopping the spread of cancer cells. Test tube experiments do seem to suggest that inhibiting the enzyme blocks the invasion of cancer cells into neighbouring ti...

Medications to Prevent Relapse to Cocaine Use

...al processes underlying relapse to cocaine use. By blocking cannabinoid receptor activity with chemical antagonists, the investigators prevented relapse to cocaine use induced by exposure to cocaine-associated cues or by cocaine itself. This finding could open up a new avenue for the development of drugs ...

All the more bad

...ch helps to prevent fatty deposits building up and blocking the blood vessels. A team of Swiss researchers examined 367 people with heart disease. Blood tests revealed significantly reduced levels of paraoxonase activity among current smokers and ex-smokers who had stopped for less than three months. However,...

Poisonous Parkinson's molecule discovered

...he basis of a diagnostic test for Parkinson's. And blocking its action could turn out to be a useful new form of therapy....

Hydroxyurea derivatives kill colon cancer cells

... derived from hydroxyurea were extremely active in blocking the same cell targets as hydroxyurea, but had serious side effects. This prompted the researchers to synthesize similar drugs with different structures that they hypothesized would be less likely to cause complications. The researchers tested the dr...

FDA Approves New HIV Drug, Viread

...etroviral agents. Like Viread, such drugs work by blocking the process needed for HIV replication in the body. But Viread is the first nucleotide analogue reverse transcriptase inhibitor to be approved for treatment of HIV in the US. As a result//, it may offer a treatment option for patients whose infection...

Caffeine can induce epilepsy in newborns

...caffeine molecules bind to receptors in the cells, blocking the action of a chemical called adenosine which plays an important role in handling stress. During stressful episodes such as oxygen starvation, adenosine protects the nerve circuits from uncontrolled activity. ...

The superior steroids

...histamines like Claritin are not very effective in blocking the allergic response once it has begun....

FDA approves drug for rare liver disease

...antly improve those dismal statistics. It works by blocking formation of the liver-destroying toxins. The drug's cost depends on the dose, which varies with the child's size: $12,000 a year for an infant, up to $60,000 a year for an older child....

Broccoli's role against cancer

... “phase 2” enzymes, that protect against cancer by blocking select chemicals from becoming carcinogens. The scientists studied sulphoraphane’s effects on a variety of cell types and oxidants in laboratory experiments, they report in a recent issue of the Proceedings of the National Academy of Sciences. Sul...

Sensible drinking staves off strokes

... against ischaemic strokes - caused by blood clots blocking arteries - which account for 8 out of 10 cases of the brain attack.// Alcohol thins the blood, so can prevents the formation of clots. It may also affect the way cholesterol is carried in the bloodstream, reducing the risk of the build-up of fatty ...

Gleevec gets hopeful results

...one marrow to run out of control. Gleevec works by blocking the action of that protein....

Blood Pressure Drugs maintain muscle strength

...e.// ACE inhibitors prevent high blood pressure by blocking an enzyme that causes blood vessels to constrict. The drugs also help to preserve muscle strength in patients suffering from congestive heart failure (CHF). Researchers said the drugs could also help elderly people who do not suffer from hear...

Aspirin deflated

...o help prevent heart attacks.// Aspirin works by blocking the formation of thromboxane A2, a chemical in the body that makes platelets sticky and promotes blood clotting. The study found that as many as 75% of patients showed some resistance to the blood-thinning effects of aspirin. The study found that tak...

Researchers trick Alzheimer's Enzyme

...ed an enzyme essential in Alzheimer's disease into blocking its own debilitating action.// A team led by Nobel...t snuggly into the active sites of target enzymes, blocking their action on other molecules. Many diseases -- cancer, AIDS, Alzheimer's, arthritis and anthrax, ...

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