Tag: "infection" at biology news

Summer Science: Where Have All The Honeybees Gone? UD 'Bee Guy' Asks Why--From America To The Amazon

...s directly damage worker bees? Do theyspread viral infection or weaken the bees' immune system, allowing otherdiseases to kill the colony? Do mite-infected bees have lower cold tolerance?This knowledge could help us to develop new control strategies or to identifydesirable traits to select for in breeding prog...

Researchers Document Transmission Of Protease-Resistant HIV

...mation from hispartner. He was diagnosed with HIV infection in 1990, and since then wassporadically treated with nine anti-retroviral drugs, including reversetranscriptase inhibitors and protease inhibitors. Hecht said that interruptions in the partner's treatment may have contributed tothe development of res...

Wake Forest Study: Dermatologists Provide Better, Cheaper Care For Fungal Skin Disease

...list for athlete's foot?You should if you want the infection cleared up faster and at less cost,according to re...there's aninfection, and the best way to treat the infection is to treat the infection,rather than the inflamation that results from the infection." The ...

Fatal Frog Fungus Found In The United States

...researcher. The discovery of chytrid ("KIT-trid") infection in this lowland leopard frograises the possibility that the disease has played a role in mysteriousamphibian die-offs in the United States, reports the July 4 Science Newsmagazine. Pathologists had already noted occasional chytrid outbreaks in U.S. z...

The Perils Of Discontinuing Therapy: Without HAART, Cytokines Stimulate HIV From Latently Infected Cells

...number, maybe the embers that re-ignite active HIV infection if a patient stops takingcombination therapy, or i... greatest challengeto the long-term control of HIV infection in patients receiving anti-HIVtherapy. The new data from the LIR buttress this view. In a series ...

The Touch Of Phytophthora

...n also be observed. At very early stages of the infection process, before the fungal hypha (a thin tube f...r as a fungal hypha (2-5 m). As with the fungal infection hypha, by itself this local mechanical stimulus induced the translocation of cytoplasm and nuc...

University Of Pittsburgh Reports Novel Ways To Improve Transplant Acceptance At Transplantation Society Meeting

...s engineeredprocess minimizes side effects such as infection associated with systemicdelivery of immunosuppressants." In one study, Dr. Thomson's team used an adenovirus to shuttle the genefor the immunosuppressant protein transforming growth factor beta (TGF$1) intodendritic cells taken from the b...

Syphilis Genome Sequence Offers Clues To Better Diagnosis, Prevention And Treatment

...false negative results for up to three monthsafter infection - and repeated tests are often needed to confirm the diagnosis. "For example, with the current screening test, people who have yaws will testpositive for syphilis," says Dr. Hitchcock. "In addition, we need a specifictest that will diagnose congenit...

Researchers Identify A Protein Critical For T Cell Development And Activation

...People lacking T cells are extremelysusceptible to infection and will die without a transplant. There are a numberof people who are immunodeficient, Koretzky said, and physicians understand thecause in only about half the cases. Koretzky is interested in collaborating withother scientists to learn if a lack of...

Pool Of Latently Infected, "Resting" Cells Established Early In HIV Infection

...ished even if apatient is treated soon after acute infection with powerful antiretroviral drugsthat reduce plas...mivudine (3TC) and Crixivan (indinavir), soonafter infection with HIV. Treatment was initiated between 10 days and 4.4months following the initial onset of HIV-...

NASA Research Helps Map Protein Structures -- Key In The Development Of New Disease-Fighting Drugs

... that causes pneumonia and severe upperrespiratory infection in infants and young children. Investigators havedetermined the structure of a potentially important therapeutic antibody to thedisease. This knowledge will permit scientists to understand key interactionsbetween the antibody and the virus, facilitat...

Common Anti-Viral Medication Prevents Severe Eye Herpes

... took acyclovirexperienced a herpes flare up. The infection flared up in about 35 percent ofthe placebo group....

DNA Vaccine 100 Percent Effective Against Rabies In Monkeys

...ther wild animals are the primary sources of human infection in the UnitedStates. Most deaths occur in developing countries where rabies is endemic and resourcesare inadequate to provide optimal post-exposure treatment. Such treatment,which consists of injections of rabies virus grown in human cells and theni...

Hopkins Researchers Urge Regular Chlamydia Testing For All Sexually Active Teenage Women

...esearchers. Because the sexually transmitted infection caused by the bacteriumChlamydia trachomatisusuall...altimore, Md., 14-year-olds had the highest rateof infection with C.trachomatis. Although most of the individuals were African-American, other, smallerstud...

New Evidence Shows How Some Flu Viruses Become Lethal

...use sweeping damage throughout the body. Influenza infection is normally limited to respiratory systems, but this previously undetected process gives the virus the deadly ability to attack many organs in the body. "This finding provides an additional marker for scientists to be awareof in their surveys...

Alaska Natives Provide New Evidence Linking Common Infection To Heart Disease

...8 -- The strongest link yet between a chronic lung infection andheart disease has been found in a study of Alas...uals. Scientists tested for the bacteria infection by measuring antibodies --cells the body produces to defend against disease -- to C. pneumoniae. ...

New Class Of Protease Inhibitors May Be Effective In Treating One Of Latin America's Most Devastating Diseases

...osomiasis or Chagas1disease, which is caused by an infection with the parasite Trypansoma cruzi (T.cruzi). Chagas is the leading cause of heart disease in Latin America and approximately50,000 people die every year as a result of it. Once confined to Latin America,cases of Chagas1 disease have been reported i...

Scientists Discover How Influenza Virus Becomes More Deadly

...ereby accelerate HA cleavageand promote widespread infection of cells. The investigators tested 10 other human, swine and avian viruses, and found noevidence of the same mechanism at work, indicating that the ability to sequesterplasminogen and thereby enhance HA cleavage was a unique property of thisparticu...

Scientists Discover How Bacteria Protect Themselves Against Immune System

...amatic implications for human health. Overwhelming infection is one of the major reasons for children and adults areadmitted to intensive care units. It's also one of the leading causes of death. New antibiotics could change that. "Bacteria vary enormously in their ability to defend themselves against nitrico...

Tourists And Scientists Could Be Bringing Deadly Diseases To Antarctica's Wildlife

...orted that 19 brown and south polarskuas died from infection with a hyphomycete fungus at Hope Bay in the northernAntarctic Peninsula. And in one of the largest outbreaks reported to date, 1345New Zealand sea lion pups and 85 adults died in January and February this yearfrom septicaemia on the Auckland Islands...

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