Trial Begins For First Artificial Liver Device Using Human Cells
...the groin, the device separates the plasmafrom the cellular components of the blood and pumps the patient's plasma throughthe filter cartridges. These cartridges bring the plasma in contact withmillions of metabolically active liver cells which should function much like anormal liver. The treated plasma is th......r of surgery and pathology and director,section of cellular transplantation. In addition, the outcomes for li...Dr. Rao reports that the overallincidence of acute cellular rejection was significantly less in the bone marrowpatients (52 percent) as compared to the control ...... bone marrow. In heart transplant patients, acute cellular rejection in the first six monthsoccurred in 38 percent of those who received bone marrow, compared to 82 percentof those who did not. Most of the rejection episodes in the group of bonemarrow-augmented patients were mild as compared to moderate to ...New Vaccine Provides Protection From HIV In Monkeys
...oth components of the immune response: humoral and cellular immunity.Humoral immunity refers to the process in...l cells inthe body. The second line of defense is cellular immunity, where T lymphocytesrecognize when host cells have become infected and destroy them. T cel......hen the DNA in a cell is damaged, a complex set of cellular signalingpathways begins. These pathways can lead to repair of the damage, programmedcell death (apoptosis), or cell death accompanied by inflammation (necrosis). Many major diseases involve these signaling pathways either through notenough ......g of synaptic connectionsthat is thought to be the cellular basis for learning and memory) in ahippocampal neuron goes along with morphological changes in specializedmicroscopic structures, the so-called dendritic spines (Nature, May-6th, 1999).Most neurobiologists believe that memories are encoded in the cha...Transplant Pioneer Thomas E. Starzl Most Cited Researcher In Clinical Medicine Over Past 17 Years
...inicaladvancements he has made with cross-species, cellular and multiple-organtransplantation, Dr. Starzl's more recent contributions to transplant science have significantly enhanced the understanding of transplantimmunology, particularly with respect to how and why organs are accepted. "Dr. Starzl is respon...Nerve Cells Live Long And Talkative Lives In Sculpted Colonies On Silicon Chips
...colonies at any desiredpoint, and then monitor the cellular synaptic activity that results. "We are nowtalking to the networks of cells that we have grown," said Brinton, "and theyare replying. We soon should have a much better idea of what they are saying."According to Brinton, the chemical activity that ta......row at the time of transplantsurgery can boost the cellular environment the team believes is necessary fortole...heart and bone marrow recipients werefree of acute cellular rejection in the first six months versus 18 percent inthe control group. Similar results are being ...Controversy Over The Effects Of Passive Smoking
...that fails to convince Robert Nilsson, anexpert on cellular toxicology at the University of Stockholm. "Although it seemsthat platelet aggregation is affected by active smoking, adequate evidenceshowing that it may account for the large effect from ETS is lacking," he says.Doll agrees: "It makes a plausible s...New Technique Induces Growth Across Spinal Cord Injury
...s of peripheral nerve-tissue "bridges,"reproducing cellular environments similar to that of peripheral nerves, orgrafts made from embryonic spinal cords, which have the capacity to regenerate. The success of those efforts, Woolf says, has been marginal. In the current study, Woolf and his colleague Simona Ne...Study suggests a drug treatment for abdominal aortic aneurysms
...arries the blueprint for MMP-9 from thegene to the cellular machinery that makes the enzyme. "So doxycycline decreasesMMP-9 production," Curci says. He also showed that the drug decreased the ability of cultured white cells toproduce MMP-9 messenger RNA and MMP-9 protein. Doxycycline had a different effect o...Study examines faith healing in a cell phone age
...le in need ofhealing prayers and ceremonies by his cellular phone. Where encroachment of western ways has destroyed other cultures, technology enables the Navajos to preserve theirtraditions in the modern world, says Thomas Csordas, professor of anthropology. For the past five years, Csordas has been the prin......tning strikes incertain areas. Such towers include cellular telephone and wirelesscommunications, radio, microwave repeater, VHF communications and water towers. The mechanism for how towers attract lightning is not really understood. Butscientists have known for a long time that towers attract more lightning...Researchers discover the driving force behind cancer cells in Hodgkin's disease
(Toronto, June 21, 1999) - The cellular fuel which powers the growth ofHodgkin's disease has been identified for the first time by a research team atPrincess Margaret Hospital's Ontario Cancer Institute, the University of Torontoand the Amgen Research Institute. The research team also dis...Combination HIV vaccine induces diverse immune response
...system. One vaccine, ALVAC-HIV vCP205, stimulates cellular immunity, resultingin cytotoxic T cells (CTLs) that can kill HIV-infected cells. The othervaccine, SF-2 rgp120, stimulates production of HIV neutralizing antibodies,which can stop HIV from infecting cells. The vaccines contain only selected HIVgene...... because it shows there are critical differencesin cellular behavior between patients with coronary disease," said Dr. WilliamLi, president and medical director of the Angiogenesis Foundation. "By studyingthese differences, it may be possible to develop a simple blood test todetermine a patient's 'angiogenic ...NSF award to five Georgia universities for new Science and Technology Center
...ssion and reproductive behaviors at the molecular, cellular and systemslevels in diverse species and at different stages of development. This is thefirst interdisciplinary effort of this magnitude addressing these fundamentalquestions, and will involve the application and development of powerful newtechnologi...12-year-old Oregon girl is first child to receive new bone growth material in her skull
...cally created product that initiates molecular and cellular activitythat causes the body to grow new bone-forming cells called osteoblasts. Theseosteoblasts then develop into healthy new bone structures. In October 1998 Emily had BMP applied to a gap in the right side of her skull.Now, 70 percent of that gap ...Selective and nonselective beta-blockers equally effective in preventing sudden death
...ta-blockers are designed to impede the action of a cellular proteincalled a beta receptor. It is part of a biochemical process that regulates theheart. The receptor inhibition by the drug blocks the toxic effects of thesympathetic nervous system on the heart. Both the selective and nonselectivebeta-blockers u...