Biological Sciences

Cancer cells can induce normal cells to turn cancerous

Exosomes from human breast cancer cells co-injected with noncancerous human epithelial into healthy female mice induced tumor growth of the epithelial cells. These exosomes contain pre-miRNA and Dicer protein that can interact to affect oncogenic gene expression.

According to the current understanding, cancer develops when a single, aberrant cell proliferates into a full-fledged tumor. However, new evidence suggests that cancer cells can also transform healthy cells into tumorous ones via an “oncogenic field effect.” This research could lead to a more complete understanding of the spread of...

 
 

Scientists restore hearing to sound-deafened mice

Scientists have been able to restore hearing to deaf mice using a protein called neurotrophin-3

Scientists at the University of Michigan and Harvard University have been able to restore hearing to deaf mice using a protein called neurotrophin-3 (NT3). Gabriel Corfas, the lead scientist on the project, is hoping to develop a similar treatment for humans. The research holds promise for those who have lost...

 
 

Positron Emission Tomography in Neuroscience and Diabetes

A full body PET scan using 2-fluorodeoxyglucose. 
Copyright SEELA, UCLA

The Yale PET Center is experimenting with ways in which positron emission tomography, previously a tool used preferentially for brain imaging studies, can be generalized to study the concentrations of clinically relevant chemical substances in other parts of the body. The center, headed by Professor of Biomedical Engineering Richard Carson,...

 
 

Bee Population Linked to Malnutrition

Pollinators, like bees, fertilize crops high in essential nutrients.

A declining bee population could have a negative impact on countries grappling with malnutrition. A recent study conducted by Rebecca Chaplin-Kramer, a landscape ecologist at Stanford University, examined the link between pollinators (mainly bees) and global health through the lens of nutrition.  Chaplin-Kramer, along with a group consisting of pollination...

 
 

Orcas and Dolphins: Communicative Parallels

Orca whales have been shown to have the ability to pick up on vocal cues from animals of different species, including dolphins.

While it may incorporate visual and perceptive components, communication is primarily an auditory exchange between two organisms. Most species use a broad spectrum of words, sounds, grunts, and clicks used to communicate an even wider array of thoughts and emotions. Certain species, humans among them, can learn to mimic the...

 
 
 
 
 

Mission Statement

Founded in 1998, the Dartmouth Undergraduate Journal of Science aims to increase scientific awareness within the Dartmouth community by providing an interdisciplinary forum for sharing undergraduate research and enriching scientific knowledge.

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