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Scientists at Wake Forest University Baptist Medical Center report today that they have found another way to shut down the doorway for HIV-1 to invade two types of white blood cells -- lymphocytes and macrophages. In a report in the Oct 14 issue of the Proceedings of the National Academy of Sciences, Si.-Yi Chen, M.D., Ph.D., assistant professor of cancer biology, and his colleagues describe how they have inactivated the most frequently used co-receptor -- docking site -- for HIV-1 viruses on the surface of both macrophages and lymphocytes, resulting in immunity of those macrophages and lymphocytes to HIV-1 infection.

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Dr. James F. Toole of Wake Forest University Baptist Medical Center has been elected president of the World Federation of Neurology for a four-year term, defeating four other candidates.

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Winston-Salem -- In what could be the most exciting advance in the treatment of AIDS to date, Bowman Gray School of Medicine scientists today reported a novel way to block the deadly HIV virus from ever invading white blood cells.

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A Catawba College psychologist is using one of the latest forms of ultrasound to actually "see" when people are thinking, and when they are not.

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Ultrasound is more than 90 percent effective in distinguishing between ischemic and hemorrhagic stroke under emergency treatment conditions, a group of German neurologists report.

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Ultrasound contrast agent reflects the signal from transcranial ultrasound probe, illuminating blocked portion of the middle cerebral artery causing an ischemic stroke, German doctors report. Doctors dissolve the stroke-causing clot with 100 milligrams of the thrombolytic rTPA, preventing stroke damage.

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Researchers from Brazil and Canada reported today (Aug. 14) that a combination of transcranial Doppler ultrasound and duplex carotid ultrasound can accurately measure the degree of blockage in the carotid arteries that serve the brain, averting the need for cerebral angiography, a risky technique that can provoke a stroke.

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Researchers from throughout the world will be coming to Winston-Salem next week to report dramatic and newsworthy findings from a broad spectrum of investigations at International Neurosonology '97 -- only the second time the meeting has been held in the United States.

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Transcranial Doppler ultrasound is giving doctors a new tool for monitoring the brain during open-heart surgery in children.

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Abnormalities measured on 3D reconstructions of ultrasound images are more reliable and easier to reproduce than on two-dimensional (2D) ultrasound, researchers from Germany reported today.

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Patients suffering from bacterial endocarditis, a heart infection, remain at risk for stroke and other cerebral complications far longer than previously known, a German doctor reported. He said 80 percent of the patients he studied continued to have microembolisms in their brains up to four weeks after having been treated with antibiotics.

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Transcranial sonography revealed tumor regrowth 6 weeks before MRI and 2 weeks before CT, German doctors report.

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Low-frequency ultrasound speeds the clot-busting power of thrombolytic drugs and may allow physicians to dissolve blood clots deep within the brain with lower doses of medication -- reducing the risk of bleeding and other complications, Japanese scientists report.

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Ultrasound is a valuable imaging technique for evaluating patients with whiplash and low back pain, investigators at Ultrasound Diagnostic Services Inc. in Cleveland, Ohio, report.

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To understand more about back pain, researchers are using sonography to study healthy people who are pain-free, and confirming that ultrasound can be used to map the major landmarks of the spine.

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A Korean neurologist has found a way to use ultrasound to monitor how well migraine medicine is working and help in preventing the vicious headaches.

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In a finding that could have implications for millions of Americans, particularly those who are diabetic, medical researchers reported today that whites and Hispanics who are insulin resistant are at a higher risk of developing atherosclerosis that can lead to stroke and heart attack.

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A content analysis of 518 televised music videos from four major cable networks showed 25.7 percent of MTV videos portrayed use of tobacco, most often by the lead singer, according to a study conducted by faculty from three medical centers.

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A combination of a blood test and ultrasound could give physicians a better picture of who is at risk of a fatal or disabling stroke, researchers in Denmark reported today (Aug. 16).