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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: 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: Swallowing the Surgeon

Swallowing the Surgeon

By | October 1, 2011

In fewer than 15 years, nanomedicine has gone from fantasy to reality.

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image: Lost in Space

Lost in Space

By | September 1, 2011

Looking for a more realistic way to study memory, we turned to place cells­­—­a network of cells that record a rat’s memory of an environment. 

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image: Molecular Learning

Molecular Learning

By | September 1, 2011

Long-term potentiation (LTP), discovered in the 1970s, was later shown to be the molecular basis of memory. 

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image: The Seat of Memory

The Seat of Memory

By | September 1, 2011

Early on, researchers had learned that the hippocampus was the structure in the brain where long-term memories were created and stored, but it was not known whether the different cell types within this structure might be more or less susceptible to the aging process.

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image: The Cytokine Cycle

The Cytokine Cycle

By | September 1, 2011

The initiating cause of Alzheimer’s disease is still unknown. However, from our studies it’s clear that many types of neuronal damage—­­from traumatic brain injury, to epilepsy, infection, or genetic predisposition—­can activate brain immune cells—microglia and astrocytes-- promoting them to produce IL-1 and S100 inflammatory cytokines.

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image: Helpful Bacterial Metabolites

Helpful Bacterial Metabolites

By | August 1, 2011

While gut microbiota appear to have both positive and negative impacts on our  health, in the guts of healthy, lean individuals, the good outweighs the bad.  

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