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Virologists make major step towards understanding the process of HIV infection

A working group of virologists headed by Professor Hans-Georg Kräusslich at Heidelberg University Hospitals, jointly with Professor Hanswalter Zentgraf, Division of Applied Tumor Virology of the Deutsches Krebsforschungszentrum (German Cancer Research Center, DKFZ), have been the first to label Human Immunodeficiency Viruses (HIV) for visual investigations without inhibiting the functional characteristics of the virus.

28 Feb 2005

Scientists find protein that could unlock the secret to more effective treatment of TB

In a study published on 1st March 2005 in Nature Structural & Molecular Biology, a combined team discovered the structure of a protein known as resuscitation promoting factor (Rpf). Five versions of the Rpf protein exist in TB bacteria. The paper’s unveiling of the molecular structure of Rpf could be crucial to the treatment of TB in the future.

28 Feb 2005

Protein to protein interaction map for a better insight in cancer development

With the completion of the genome sequence of a number of organisms, analysis of the gene products, the proteins, is the on-going challenge.

28 Feb 2005

New medical devices can cause new immune problems

Medical devices are traditionally thought of as fairly simple implants such as stents and hip replacements – pieces of plastic or metal that are placed in the body to handle a very specific function. But biomedical devices now on the drawing board are considerably more sophisticated and represent an unprecedented melding of man and machine.

28 Feb 2005

Targeting the Hedgehog pathway could be used in the treatment of neurodegenerative diseases

Aberrant activation of the Hedgehog (Hh) pathway has been associated with numerous malignancies including basal cell carcinoma, medulloblastoma, and pancreatic cancer. Several reports also suggest that positive regulators of the Hh pathway could be used in the treatment of neurodegenerative diseases.

27 Feb 2005

Measuring hyaluronan in joints and fluid that lubricates cartilage might enable doctors to diagnose osteoarthritis more accurately

Measuring a biological chemical called hyaluronan found naturally in joints and the fluid that lubricates cartilage might enable doctors to diagnose osteoarthritis of the knee and hip earlier or more accurately, a new study concludes.

27 Feb 2005

Novel mutation in the recently identified LRRK2 gene causes parkinsonism

Neuroscientists at Mayo Clinic in Jacksonville, Fla., leading a team of researchers in the United States and Europe, have discovered that a novel mutation in the recently identified LRRK2 gene causes parkinsonism in several North American and European families.

27 Feb 2005

Importance of Fbw7 as an emerging tumor suppressor

The DNA tumor virus simian virus 40 produces the Large T antigen which inactivates two of the cell's most important cancer-preventing proteins, p53 and pRb.

27 Feb 2005

Scientists identify immune-system mutation

A team of Fox Chase Cancer Center scientists led by immunologist Dietmar J. Kappes, Ph.D., has identified the genetic mutation that keeps a mouse strain from developing white blood cells, or lymphocytes, called helper T cells. The report by Kappes and his colleagues appears in the Feb. 24 issue of Nature.

27 Feb 2005

Early Alzheimer's disease may be precipitated by a neuron traffic jam

Early Alzheimer's disease may be precipitated by a “traffic jam” within neurons that causes swelling and prevents proper transport of proteins and structures in the cells, according to new studies by Howard Hughes Medical Institute researchers.

27 Feb 2005

Differences in how HIV virus infects males and females

A genetic analysis of viral RNA from 10 heterosexual couples, in which one partner has sexually transmitted HIV to the other, provides the first documentation of some differences in how the virus infects males and females.

27 Feb 2005

Common epigenetic problem doubles cancer risk

In experiments with mice, a team of scientists from the United States, Sweden and Japan has discovered that having a double dose of one protein is sufficient to change the normal balance of cells within the lining of the colon, thereby doubling the risk that a cancer-causing genetic mutation will trigger a tumor there.

27 Feb 2005

Genzyme begins gene transfer trial for peripheral arterial disease

Genzyme Corporation announced today that the first patient has been treated in a new phase 2 clinical trial examining the safety and effectiveness of locally delivered gene transfer for patients with peripheral arterial disease.

24 Feb 2005

Childhood obesity is a serious health problem in Australia

Professor Michael Booth, co-director of the University of Sydney's Centre for Overweight and Obesity, said teenagers were already showing signs of serious illness caused by their weight.

24 Feb 2005

Experts on chronic lymphocytic leukemia (CLL) review current scientific knowledge

When the most common adult leukemia in the United States was last reviewed by the New England Journal of Medicine (NEJM) in 1995, it was seen through the eyes of theories that dated back to the 1960s.

24 Feb 2005

Protein called CK2 plays a deadly role in colorectal carcinoma

A protein called CK2 plays a deadly role in colorectal carcinoma by blocking the ability of these tumors to activate a natural self-destruct mechanism that would clear this cancer from the body. This finding, by researchers at St. Jude Children's Research Hospital, is currently published in the online edition of Oncogene.

24 Feb 2005

Discovery could lead to the prevention, and possibly treatment of autoimmune diseases such as Type 1 diabetes

Scientists at the University of Maryland School of Medicine in Baltimore have identified a way to prevent Type I diabetes in rats that are genetically prone to develop the disease.

23 Feb 2005

Researchers identify target for cancer drugs

For nearly a decade, scientists have been trying to fully understand a particular communication pathway inside of cells that contributes to many malignant brain and prostate cancers. While scientists have identified elements of this pathway, other key components have remained a mystery.

23 Feb 2005

New information that may help guide design of vaccines for HIV-1

Scientists have uncovered new information that may help guide design of vaccines for HIV-1, the virus that causes AIDS. A new detailed structural analysis of the complex formed by an anti-HIV antibody called 4E10 and its specific target provides insight into why this particular antibody is so broadly effective, a rare characteristic for HIV discovered thus far.

22 Feb 2005

Research shows preventive effects of cannabinoids on Alzheimer's disease

New research shows that a synthetic analogue of the active component of marijuana may reduce the inflammation and prevent the mental decline associated with Alzheimer's disease.

22 Feb 2005