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image: The Anatomy of a High

The Anatomy of a High

By Thomas Kosten | June 3, 2011

When someone snorts or smokes cocaine, which is composed of small crystalline alkaloid molecules, the drug enters the bloodstream and from there eventually crosses into the heart, brain, and other organs. 

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image: Part Human, Part HIV

Part Human, Part HIV

By Gene M. Shearer and Adriano Boasso | June 3, 2011

Like other enveloped viruses, HIV exits its host cell enshrouded in the cell’s membrane, which contains membrane molecules such as the human leukocyte antigens (HLA). 

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image: The essence of stem cells

The essence of stem cells

By Cristina Luiggi | June 3, 2011

Researchers discover a protein that may allow already-differentiated somatic cells to become stem cells.

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image: <em>E. coli</em> epidemic baffles doctors

E. coli epidemic baffles doctors

By Cristina Luiggi | June 3, 2011

A highly virulent strain of E. coli that has already killed two people and infected around 800 (most of whom live or had visited northern Germany) has proved an enigma for epidemiologists. 

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image: Mapping HIV in the US

Mapping HIV in the US

By Cristina Luiggi | June 3, 2011

A detailed interactive map shows the distribution of people in the United States who are infected with HIV, Wired reports.

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image: Cell phones cause cancer?

Cell phones cause cancer?

By Cristina Luiggi | June 3, 2011

A study commissioned by the World Health Organization suggests that electromagnetic fields given off by cell phones may cause brain cancer. 

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image: The Gravity of Life

The Gravity of Life

By Rob Dunn | June 1, 2011

Whose well-being is threatened by our changing relationship with the myriad organisms that shaped the evolution of our species?

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Vaccines

By Robin A. Weiss and Peter Hale | June 1, 2011

Looking back, looking ahead

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image: The Last Vaccine Frontier

The Last Vaccine Frontier

By Brad Spellberg | June 1, 2011

Successful vaccines have been created to protect against pathogenic bacteria and viruses. Why aren’t there any for combating fungal infections?

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image: Recognizing the Human Potential

Recognizing the Human Potential

By Gene M. Shearer and Adriano Boasso | June 1, 2011

It may be time to reconsider an AIDS vaccine which is more human than viral, triggering the immune system in a way that no other vaccine does.

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