Evolution News and Research

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Book explores impact of viruses on evolution

Although viruses technically may not be alive, their contribution to the dynamic web of life is undeniable. A new book, published by ASM Press, focuses on the role that viruses have played and continue to play in the evolution of life.

12 Jan 2005

What makes an allergen an allergen?

An enduring mystery for allergy researchers has been the unpredictable distribution of allergens in plants. For example, being allergic to birch pollen can predispose a person to allergy from distantly related plant foods such as celery, apple or soy.

12 Jan 2005

Serono announces the availability of Saizen for adult growth hormone deficiency

Serono announced today the availability of Saizen [somatropin (rDNA origin) for injection] for use in the treatment of patients with adult growth hormone deficiency (AGHD), following its FDA approval.

10 Jan 2005

Core promoter mutants of Hepatitis B Virus e Antigen associated with development of fulminant hepatitis and liver cancer

Scientists in Brown Medical School, Providence, USA, have found that core promoter mutants of Hepatitis B Virus e Antigen replicate at up to 10-fold higher levels in transfected human hepatoma cells than the wild-type virus.

9 Jan 2005

Link between fast food, weight gain, and insulin resistance

Researchers have shown a correlation between fast food, weight gain, and insulin resistance in what appears to be the first long-term study on this subject.

3 Jan 2005

Evolution has been working very hard to produce us humans

The genes that regulate brain development and function evolved much more rapidly in humans than in nonhuman primates and other mammals because of natural selection processes unique to the human lineage. Researchers reported their findings in the cover article of the Dec. 29, 2004, issue of the journal Cell.

28 Dec 2004

Somatic hypermutation (SHM) should prove to be extremely useful in directed protein evolution

Fascinated by the efficient way the human immune system generates a rapid response to create a near-infinite variety of antibodies, researchers have "hijacked" that machinery and used it to evolve a new type of fluorescent protein.

23 Dec 2004

Wireless technology does not affect pacemakers and defibrillators

With the dynamic evolution of wireless technology, Mayo Clinic researchers have been concerned about the potential effects of electromagnetic interference on heart pacemakers and implantable cardioverter-defibrillators.

22 Dec 2004

Permanent resistance to antibiotics cannot be prevented

Dutch research has shown that the development of permanent resistance by bacteria and fungi against antibiotics cannot be prevented in the longer-term. The only solution is to reduce the dependence on antibiotics by using these less.

20 Dec 2004

Ethical challenges ahead for neuroscience and society

Are we ready for a future where brain scans invade our private thoughts? Will we have to alter our brains chemically to keep competitive at our jobs? Could science determine that "souls" do not exist, and, if so, what does that mean for how we think of ourselves as human beings?

20 Dec 2004

The regulation of physical activity in young children

The evidence at present suggests that neither better facilities, nor an increase in the amount of time allocated to PE to four hours a week, will improve physical activity levels in children as a whole and thereby impact on the rising tide of obesity.

16 Dec 2004

New theory driving evolutionary changes

Researchers at UT Southwestern Medical Center at Dallas have used canine DNA to identify a genetic mutation mechanism they believe is responsible for rapid evolutionary changes in the physical appearance of many species.

14 Dec 2004

Patent issued for generating genetically evolved mammalian cells through the regulation of mismatch repair

Morphotek announced today the issuance of United States Patent 6,825,038 covering the regulation of mismatch repair (MMR), a powerful process for generating functional diversity in mammalian cells, to yield sibs exhibiting desirable phenotypes for target discovery, drug screening and/or product development.

13 Dec 2004

Powerful women at a disadvantage in the marriage market because men may prefer to marry less accomplished women

Men are more likely to want to marry women who are their assistants at work rather than their colleagues or bosses, a University of Michigan study finds.

13 Dec 2004

Discovery of key immune system molecules that helps determine how effectively a person resists HIV infection

A team of researchers based partly in South Africa has identified a key set of immune system molecules that helps determine how effectively a person resists infection with human immunodeficiency virus (HIV).

8 Dec 2004

Gauging the risk from prolonged low-level radiation

Everyone knows that high doses of radiation are dangerous, but the effects of long-term exposure to low-level radiation is poorly understood. RISC-RAD, a new European Union backed research project, seeks to identify our tolerance threshold so as to optimise protective measures.

7 Dec 2004

New clues in understanding why group A streptococci (GAS) has a range of bacterial afflictions in humans

Researchers have unlocked new clues in understanding why group A streptococci (GAS) has a range of bacterial afflictions in humans. One of the keys to this species of bacteria is its production of streptokinase (SK), an enzyme that activates plasminogen, the blood clot-dissolving protein in humans.

6 Dec 2004

MRI reveals similarities between the human and chimpanzee brain

New MRI-based studies present more evidence that the brains of chimpanzees are human-like in terms of the relationships among brain asymmetry, handedness and language, according to research undertaken at the Yerkes National Primate Research Center in Atlanta.

6 Dec 2004

Human endogenous retroviruses (HERVs)

Human endogenous retroviruses (HERVs) have been the subject of a great deal of investigation in recent years. It has been established that HERVs cause some genetic diseases and there is strong circumstantial evidence for a link to some types of cancer and autoimmune diseases, but what else do we need to know about these unique organisms?

4 Dec 2004

Fossil record of the human immune system reveals antibodies that block cancer metastasis

A team of researchers at The Scripps Research Institute has reconstructed the "fossil record" of the immune systems of a group of human cancer patients to investigate if they had ever produced antibodies against their disease.

4 Dec 2004