UPMC Reports On New Liver Assist Device
...ure on the device,which is connected to a vein and remains outside their bodies. Researchersbelieve it should help remove toxins from the patient's own liver cells, as thepatient's blood circulates in a chamber with pig liver cells inside polymermembranes. The membranes allow toxins to pass through, but pr......important in solving many of these problemsand yet remains virtually unknown: bacteria. What bacteria are in ...at is also used in business andindustry. Much more remains to be known before these marine bacteria can be usedby humankind, however. Indeed, scientists are st...Bears Cubed: Virginia Tech Studies Three Bears, And Three Bears, And Three More Bears
...ut 300 cells inthe blastocyst stage. It floats and remains unattached in the uterus until earlyDecember." "We don't fully understand the relationship between denning and the timing ofimplantation," the bear expert notes. "Our bears appear to implant beforedenning but in the wild that may vary from year to ye......berculosis belongs to the "old" diseases, it still remains a significant global health problem. Tuberculosis is responsible for 3 million deaths annually - more than at any time-point before and more than any other infectious agent. Moreover, it has been estimated that half a billion people......ke Charles, La. But the source of the naphthalene remains amystery. Although Henderson admits that it may be possible for some animals tomake naphthalene, he points out that there is no direct evidence of naphthalenebeing made by any animal or microorganism. Since termites use soil, masticatedwood, and ...New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance
... from chronic heart failure to atherosclerosis. It remains unclear, however, just howET-1 works in the body, and this study is the first to indicate genderdifferences There's another reason to understand these receptors, though. Drugs thatblock the binding of ET-1 to its receptor sites have been show......ve health information and services to young people remains highly controversial. Laws and policies often restrict their access to such services. In Kenya, the Roman Catholic church has vigorously opposed sexuality education in schools. A second area where progress is lagging is the incorporation of AIDS ed...Cystic Fibrosis Gene Protects Against Typhoid Fever
...illedabout 15 percent of infected individuals. It remains a serious problem incountries that lack adequate sewage treatment facilities, since contaminatedwater is a major source of S. typhi transmission. Implications Dr. Pier speculates that, in addition to advancing the understanding of howpathogens inte...New Airway's 'Smarts' Ensure That Patients Get Plenty Of Oxygen
...skin on the front of the neck,but the bulb's light remains visible only in dimly litsurroundings. All endotracheal tube designs also feature a radio-opaque stripe that can be observed using conventional X-rays, butthese can't be used to check the airway until the patient reachesa hospital. Paramedics an......by which the R1 protein phosphorylates amylopectin remains to be elucidated. It is not known which substrate acts as a phosphoryl donor, nor which type of glucans are phosphate acceptors. Evidence that phosphoenolpyruvate may act as a phosphoryl donor comes from slight ...Researchers Unable To Document Existence Of Transient HIV Infection In Infants
...te that the phenomenon of transientHIV-1 infection remains to be proven and that most cases suggestive of transientHIV-1 infection are cases of mislabeling of specimens or their contamination inthe laboratory," state the authors. Co-authors include researchers from the University of Washington, U.S....Scientists Unearth Remains Of A Predatory Dinosaur In Madagascar
...during a flood soon after its death,protecting the remains from scavenging and decomposition, says David Krause,professor of anatomical sciences at SUNY Stony Brook and leader of the 1996expedition team that made the discovery. The fossil's good condition is just one of many reasons the scientistsare...COGA Suggests Genetic Loci For P3 Brain Wave Abnormality
...Begleiter and Porjesz in 1985 demonstrated that P3 remains low in alcoholics who have been abstinent for as l...s are responsible for the observed genetic linkage remains to be determined by high-resolution mapping. It is now well established that reduced P3 amplitude ...40% Of Developing World Infants Stunted
..."We now understand that the prevalence of stunting remains high in part because it takes more than one generation for growth potential to be realized," Frongillo says. "How well a child grows depends not only on conditions after birth but also on the conditions before birth and the health and nutrition of t...Cops And Docs Find Evidence In The Other DNA
Results of the recent investigation to identify remains removed from the Tomb ofthe Unknowns at Arlington National Cemetery likely will hinge onDNA, but not DNA from the nucleus of a cell. Rather, investigators are lookingat circular DNA found in the mitochondria, a tiny structure thatconverts nutrients i...Report Focuses On Managed Care Impact In Clinical Microbiology Labs
...t thatwill ensure that the quality of patient care remains the central focus of thediscipline. The future of clinical microbiology depends upon the initiative andvision of today's clinical microbiologists and on their abilities to educate thehealth care community about the key role of clinical microbiology i...Virginia Tech Biologists' Discoveries Could Help Target Cancer Treatment
...rventions for human cancer. Genetherapy of cancer remains a potentially valid approach, and, in fact, clinicaltrials are underway in some cases. To be effective however, a valid genetherapeutic treatment must be based on the known molecular interactions thatoccur in the cell in response to cancer causing ag...New Biomaterial Has 'Star' Power
...When we leach out the drug or protein, the polymer remains in that configuration. Later, if we pass the same drug or protein over the gel, the polymer recognizes the molecule and binds to it." In her experiments, Keys imprinted a gel with the drug proxyphylline, a bronchodilator used to increase the lun...Pediatric Anesthesiologists Risk Halothane-Related Liver Injury
...ociated with halothanehepatitis," Njoku says. "It remains to be determined why these individuals havenot developed liver injury." The study's other authors were Robert S. Greenberg, M.D., and Jackie LeeMartin Jr., M.D., of Hopkins; and Mohammed Bourdi, Ph.D., and Lance Pohl,Pharm.D., Ph.D., of the N...News Backgrounder: Duke Primate Center Successfully Fosters Mysterious Aye-Ayes
...ial orreassurance signal, but the phenomenon still remains mysterious. To understand perhaps the biggest mystery -- how aye-ayes use theirtapping to locate food -- Duke psychology professor Carl Erickson has spent thelast seven years experimentally challenging the animals to perform feats ofdetection...