Tag: "active" at medical news

A Surgical Semiconductor Laser With More Precision And Power

...fied semiconducting material on either side of the active layer ofgallium arsenide, where the beam is formed. "It's long been known that in filamentation, you get a 'positive' bending in the beams of high-poweredsemiconductor lasers, but nobody has been able to successfully counteract that with a 'nega...

ACTG 315 Preliminary Results: Drug Cocktail Restores Partial Immune Function

... studies indicate that peoplewho respond to highly active antiretroviral therapy (HAART) --drug combinations that include protease inhibitors -- can experiencedecreased plasma levels of HIV, increased circulating CD4+ T cellcounts, decreased risk of opportunistic infections and decreasedshort-term mortality...

Substance from Grapefruit Juice May Make Medications Safer

...dividual can be toxic to another. Addition of the active substance in grapefruit juice to a medication could produce a drug for which a standard dosage would be equally effective in everyone. What should people who regularly take drugs that are metabolized by CYP3A4 do? "Consistency is the key," Dr. Lown...

TB Prophylaxis Unnecessary In HIV-Infected People With Anergy, Study Suggests

...who have close contact withanother individual with active TB." Although only 10 percent of healthy people infected with TB bacteria everdevelop active TB disease, co-infection with TB and HIV dramatically increasesthis risk. A number of studies have ...

Studies Find Public Policies For Children And Teenagers Not Very Effective

...atethat they do help students who are not sexually active delay theinitiation of sexual activity. These prog..., however,keep teenagers who were already sexually active from having sex orhaving unprotected sex. More research is needed in the area ofimproving parent-chi...

Cardiovascular Costs, Deaths Projected To Rise In 1998

...f cholesterol - actions such asbecoming physically active and eating a diet low in saturated fat andcholesterol. Medical treatments, primarily cholesterol-lowering drugs, are alsoavailable." The 1998 Heart and Stroke Statistical Update includes a section to tiein with the AHA's effort to alert wome...

Rats Receiving Ginkgo Biloba Learn Quicker, Live 20 Percent Longer Than Controls, UB Study Finds

...ficant positive relationship between the amount of active ingredient and degree of learning. The standard dose during most of the study was 50 mg/kg. However, one sub-group of animals was assigned to receive EGb 761 in doses of 100 mg/kg followed by 200 mg/kg, interspersed with periods when they performed...

Researchers Finding May Boost Effectiveness Of Anti-HIV Drugs

...ated," Kimsaid. "We need to find out in humans how active this transporter is and whetherwe can inhibit its activity. "HIV probably has multiple ways to hide out, and the one we'resuggesting is that Pgp protects it from drug exposure. Ultimately, the hope isthat if we can remove HIV's sanctuaries, w...

Heart Attack Survivors Can Lower Stroke Risk By Taking Cholesterol-Lowering Drug, Study Says

...cks, the powerto detect the difference between the active therapy and the placebo was less. Sonone of the LDL numbers is statistically significant," says Plehn. Nonetheless, he added, "the data are suggestive that if you have a highLDL cholesterol to start, pravastatin will make a big difference in...

Exercise, Classroom Instruction Cut Kids' Cholesterol, Study Finds

...aged andolder people in this country were far more active when they were children than kids are now. Our study was to see if we could make a difference in one of the major risk factors for heart disease." The professor reported her team's results at a news conference today(March 19) at an American H...

Is Ritalin As Effective--And As Harmless--As It Could Be?

... enantiomer may have some unwanted influenceon the active enantiomer or may contribute unwanted side-effects, althoughlong-term human studies would be needed to confirm this. "This leads to the veryimportant issue of whether we should use a racemic drug or a single enantiomer,"says Ding. Clincial studies of...

BioNumerik Reports Preclinical Antitumor Data On Two Novel Supercomputer Engineered Anticancer Agents At 89th Annual AACR Conference

...oisomerase I inhibitors, represent some of themost active anticancer drugs in existence. Due to formulation problems,however, the great majority of camptothecins in development or on the markethave been made water soluble to allow easier drug dissolution andadministration. BioNumerik believes that this ap...

Researchers Identify Candidate Immunosuppressant With Fewer Side Effects

...hese agents bind. Cyclosporin A and FK506 blockthe active site of calcineurin and prevent it from acting on ...T cell activation and immunosuppressionmakes it an active area of current research. Two groups of Harvard investigatorsreported the structure of NFAT bound to...

Neurotransmitter-Induced Electrical Activity Identified As Key Regulator Of Synaptogenesis

...eptors, encounter freely diffusing an active nerve terminal releasing the appropriate neurotransmitter, namely glycine, they open and the resulting ion flux generates a local change in membrane potential. This induces the opening of voltage-gated calcium channels. ...

Products For Weight Loss Or Increased Energy Can Be Deadly, Warn Poison Control Experts

...ed 'natural' or 'herbal,'" she said. "Many contain active ingredients thatcan be dangerous to certain individuals because of their current healthcondition or because of medications they are taking. Any person consideringusing one of these products should consult a physician first." Since January 1, CPCS ha...

Study Finds St. John's Wort Can Cut Alcohol Consumption

...hapelHill researchers have discovered. The plant's active ingredient, hypericin,might prove effective in the fight against alcoholism, the scientists say. "This is exciting - and simple -- because St. John's wort already is themost often prescribed antidepressant in Germany," said Dr. Amir H. Rezvan...

Answers To Access, Adherence And Tolerance Of Protease Inhibitors

...hibitor therapy, except for thosepatients who have active substance abuse or alcohol problems, says another studyStone will present Wednesday, July 1. Although they can stick to treatment, women, minorities and patients with lesseducation are less likely to be offered potent drug cocktails containingproteas...

Mostly In The Mind

...n each study, the patients had been given eitheran active drug or a chemically inactive placebo, and their p...ed patients to the fact thatthey were receiving an active drug rather than a placebo. They say that thestudies could have wrongly ascribed this additional eff...

Walking Or Bed Rest OK For First Stage Of Labor, UT Southwestern Research Shows

...m concluded. "Walkingneither enhanced nor impaired active labor and was not harmful to the mothers ortheir infants. Most of those who did walk indicated that they would do so againin a future labor. Since our results provide no objective evidence for oragainst walking during labor, it seems reasonable to le...

Anti-Depressants: Miracle Drugs Or Placebos With A Buzz?

...tient, 75 percent of the benefit obtained from the active drug would also havebeen obtained from an inactiveplacebo," the authors say. And it is possible, they say, that the remainingbenefit came not from anything the drugs did to fightdepression specifically, but from an enhancement of the placebo effectca...

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