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Tag: "fragments" at medical news

Protein's Role in Triggering Cancer Identified

... by Cancer Research UK, we have identified protein fragments which can bind to MDM2, inhibiting its activity. These fragments could be a good template for drugs designed to hinder the role of MDM2 in the p53 destruction pathwa...

Aging Critical For Alzheimer's Disease

...brain cells produce aggregation-prone beta-amyloid fragments that must be cleared. "This process is very efficient when we are young but as we get older it gets progressively less efficient," says Cohen. As the affected individual reaches the seventh decade of life the clearance machineries fail to degrade the...

Activated T-Cells Could Help In The Battle Against HIV

...mportantly, the dendritic cells presenting the HIV fragments were able to stimulate CD8 cells when the two cell types were combined. “This model of T cell activation by dendritic cells provides a basis for immunotherapy trials of persons with HIV infection,” said Dr. Huang. The trial should be enrolling pa...

China’s AIDS vaccine-successfully finishes first phas

...ic cells injected into the recipients were the DNA fragments of the virus that don't cause infection,” Sang said. ”Some recipients' cells and body fluids in the combined group appeared immune to the HIV-1 virus.” Kong Wei, leader of the research team and a professor at Jilin University said, ”A total 344 b...

Stress Could Have A Notable Effect In Quickening The Progression Of Alzheimer's disease

...eta-amyloid production increases and these protein fragments aggregate, they form plaques, one of the two hallmark brain lesions of Alzheimer’s disease. The scientists also found that the levels of another protein, tau, also increased. Tau accumulation eventually leads to the formation of tangles, the other si...

Kyphoplasty Yields Good Long-Term Improvement for Spinal Fractures

...plasty procedure, a balloon is used to line up the fragments of the fracture, then an acrylic cement is injected to hold the fragments in place. In 43 patients, two or more fractures were treated. Before treatment, the patients had s...

Protein Splicing Upsets the DNA Colinearity Paradigm

...found that proteasomes can also splice the peptide fragments together in a reverse order to that encoded by the protein’s DNA sequence template. This takes the possible number of antigens from any one protein into potentially thousands of sequence configurations. The sequence of the first human cancer-specif...

Surgery Goes Hi-Tech With a ‘Solution’ to Stop Blood Los

...on is a biodegradable liquid consisting of protein fragments which is capable of arresting the bleeding, scientists said, after they tested it on wounded rodents. Rutledge Ellis Behnke, a research scientist at the MIT Department of Brain and Cognitive Sciences and lead author of the study said "The time to p...

Cell Wall of Pneumonia Bacteria Can Cause Brain and Heart Damage

...rchers reported that in the mouse model, cell wall fragments damaged neurons in the part of the brain called th...nt study, the researchers showed how the cell wall fragments escape the bloodstream and enter cells. Specifically, they demonstrated that pieces of the bacterial...

Genes determine the capacity to fight HIV in early stages

...lass I that have been inherited, as well as on the fragments of viral protein those molecules display to the T ... found that only a limited number of viral protein fragments from HIV-1 are targeted by the immune system in early infection and that the versions of HLA Class I...

Voluntary Recall Of Tainted Painkillers

...o has cautioned users that the pills could contain fragments of metal after trace amounts were found in some of its 500-milligram caplets. The Food and Drug Administration reported that the problem came to light only last week after Perrigo quality control measures revealed issues with manufacturing equipmen...

Impact of Climate Change in Africa

...bon dating and analysis of the pollen and charcoal fragments enabled a picture of environmental changes to be built up. 'It is painstaking work, but the results were clear' says Dr Gillson 'at the time of the Emutai there was a drought, an increase in burning and soil erosion: indicators of a large infrequent ...

Plastic May Be Poisoning Oceans: Scientists

...mpson and his team set out to find how small these fragments can get. So far they've identified plastic particl...ver the years. Scientists are worried that these fragments can get into the food chain. There is the possibility that chemicals could be transferred from plast...

First Gene Chip Discovered by Cincinnati Researchers

...lood. Gene chips contain several thousand small fragments of DNA on a small piece of glass. Incubation of these chips with the patient's DNA sample produce chemical signals that "glow" and allow for the detection of the normal gene sequence, or of mutations if they are present in the patient. "The jaundi...

Cellular Pathway Yields Potential New Weapon in Vaccine Arsenal

...ght to come from sources outside the cell, such as fragments of dead, infected cells. But as Münz discovered two years ago, an autophagy pathway allows intracellular antigens to be presented on MHC class II molecules. Now Münz, head of Rockefeller’s Laboratory of Viral Immunobiology, and Dorothee Schmid, a g...

MIT Creates 3-D Scaffold for Growing Stem Cells

...a new three-dimensional scaffold of tiny protein// fragments designed to be more like a living body than any ot...omedical Engineering, is a pioneer in coaxing tiny fragments of amino acids called self-assembling peptides to organize themselves into useful structures. Workin...

Schwarzenegger Undergoes Surgery for Broken Leg

...tors used screws and cables to fix together broken fragments of bone. It is possible that the governor will attend his second inauguration ceremony next month on crutches, reports contactmusic.com. Orthopaedic surgeon Kevin Ehrhart said: "He is now fully coherent, and I have cleared him to resume his dut...

New Test Predicts CLL’s Sensitivity to Experimental Drug

...om cancer cells; then they exposed them to protein fragments – peptides – that were known to interact with surv... test "BH3 profiling" because the array of protein fragments is known as "BH3 domains." Letai said work is under way to make the laboratory profiling operation m...

Hookah Could Be as Harmful as Cigarettes

...haling harmful chemicals from the charcoal or wood fragments used for heating the tobacco, such as carbon monoxide or metals, it added. Hookah bars and cafes have gained popularity in recent years, often springing up in large cities and near colleges. The sweetened, flavored tobacco makes smoking hookah less...

A Sweet Step Toward New Cancer Therapies

...ry—a technique that accurately weighs molecules or fragments of molecules—to analyze proteins. In this process,...ansson said. Together, the masses of the various fragments provide a sort of fingerprint that reveals the genetic blueprint from which the protein was built—in...

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