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» disease/medicine, evolution and immunology

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image: Delivering New Genes

Delivering New Genes

By | June 1, 2012

Gene therapies typically involve the introduction of genetic material into target cells to replace or supplement an existing, usually dysfunctional, gene. 

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image: Digging the Underground Life

Digging the Underground Life

By | June 1, 2012

A rare peek inside the subterranean home of the naked mole-rat

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image: Messing with HIV

Messing with HIV

By | June 1, 2012

Sangamo Biosciences is putting a different spin on gene therapy. 

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image: Spot the Moth

Spot the Moth

By | May 1, 2012

It’s a well-known story: The peppered moth’s ancestral typica phenotype is white with dark speckles. 

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image: Telomere Basics

Telomere Basics

By | May 1, 2012

Telomeres are repetitive, noncoding sequences that cap the ends of linear chromosomes. They consist of hexameric nucleotide sequences (TTAGGG in humans) repeated hundreds to thousands of times. 

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image: A Whiff of TB

A Whiff of TB

By | March 1, 2012

Chemical ecologist Max Suckling at the Institute for Plant and Food Research Ltd., and summer student Rachael Sagar use Pavlovian conditioning to train bees to stick out their tongues, or proboscises, at the scent of odors produced by tuberculosis-causing bacteria.

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image: How Drugs Interact with a Baby’s Parts

How Drugs Interact with a Baby’s Parts

By | March 1, 2012

A lot changes in a child’s body over the course of development, and not all changes occur linearly: gene expression can fluctuate, and organs can perform different functions on the way to their final purpose in the body. Here are some of the key deve

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image: Suspected Effects of Vitamin D

Suspected Effects of Vitamin D

By | March 1, 2012

Vitamin D has a variety of actions in the body. It binds to the vitamin D receptor (VDR), which then binds to the retinoid X receptor (RXR) and activates the expression of numerous genes. 

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image: Calcium and the Pancreas

Calcium and the Pancreas

By | February 1, 2012

Normal pancreatic function depends on the precise flow of calcium within and into the acinar cells of the organ. 

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image: Inflammation, Pain, and Resolvins

Inflammation, Pain, and Resolvins

By | January 1, 2012

Not all inflammation leads to pain. Despite widespread infection followed by fever, colds rarely cause pain. But when some cytokines and certain immune cells are active near pain-sensing nerves, they trigger receptors that convey pain sensations to the brain.

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