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News Archive - Biological Sciences

Artificial Intelligence Quickly and Accurately Diagnoses Eye Diseases and Pneumonia

February 22, 2018

Using artificial intelligence and machine learning techniques, researchers at Shiley Eye Institute at UC San Diego Health and University of California San Diego School of Medicine, with colleagues in China, Germany and Texas, have developed a new computational tool to screen patients with common but blinding retinal diseases, potentially speeding diagnoses and treatment.

Surprise Finding Points to DNA’s Role in Shaping Cells

February 8, 2018

Working at the intersection of biology and physics, scientists at UC San Diego have made a surprising discovery at the root of cell formation. They found that DNA executes an unexpected architectural role in shaping the cells of bacteria. Studying the bacterium Bacillus subtilis, the researchers used an array of experiments and technologies to reveal that DNA, beyond serving to encode genetic information, also “pumps up” bacterial cells.

Active Genetics Technology Opens New Horizons

February 6, 2018

Employing CRISPR/Cas9 advancements, UC San Diego researchers are using new active genetics technology to reveal new fundamental mechanisms that control gene activity. The authors also provide experimental validation for using active genetics as an efficient means for targeted gene insertion, or “transgenesis,” and single-step replacement of genetic control elements.

What Makes a Good Egg?

February 5, 2018

In approximately 15 percent of cases where couples are unable to conceive, the underlying cause of infertility is not known. Researchers at University of California San Diego School of Medicine and in the Division of Biological Sciences at UC San Diego have identified a protein in mice that must be present in eggs for them to complete normal development. Without the protein, called ZFP36L2, the eggs appear ordinary, but they cannot be fertilized by sperm.

Novel Technologies Reveal Key Information About Depleted East Pacific Green Sea Turtles

January 29, 2018

Using new technologies developed to extract life history information from bones, researchers at UC San Diego are learning more than ever about populations of green sea turtles living in the eastern region of the Pacific Ocean. While their numbers remain dangerously depleted, the new data show that green sea turtles are spending more time offshore, increasing their risk as fishing bycatch.

Discovery Offers New Genetic Pathway for Injured Nerve Regeneration

January 25, 2018

Researchers on the hunt for genes involved in regenerating critical nerve fibers came away with a surprise: The discovery of a new genetic pathway that carries hope for victims of traumatic injuries—from stroke to spinal cord damage. Although no cures exist for many nervous system injuries, if the damaged neurons do not die, “there is hope to find ways to make them stronger and help them regrow,” said senior author Yishi Jin.

Worldwide Importance of Honey Bees for Natural Habitats Captured in New Report

January 10, 2018

An unprecedented UC San Diego study integrating data from around the globe has shown that honey bees are the world’s most important single species of pollinator in natural ecosystems and a key contributor to natural ecosystem functions. The report weaves together information from 80 plant-pollinator interaction networks.

Pesticides and Poor Nutrition Damage Animal Health

December 19, 2017

The combined effects of pesticides and a lack of nutrition form a deadly one-two punch for animals, new research shows for the first time. Researchers studied how honey bees fared with exposure to pesticides and limited nutrient sources, scenarios found in agricultural areas. They were surprised to find that bee deaths increased by up to 50 percent more than they expected.

New UC San Diego Chapter Sends LGBT+ Delegates to oSTEM Conference

December 14, 2017

For the first time, a delegation of faculty and students from the University of California San Diego attended the annual Out in Science, Technology, Engineering and Mathematics (oSTEM) National Conference to promote greater involvement of LGBT+ community in STEM fields.

Scientists Identify Promising New Approach for Immune System Defense against Cancer

December 11, 2017

Researchers have identified a promising new strategy to fight infections and cancer. They uncovered a novel function for a protein known as “Runx3” that is key to the development of killer T cells—immune cells important for fighting infections and cancer. The researchers believe Runx3, if properly directed, could be combined with other approaches to help T cells recognize and destroy tumor cells and enhance vaccine efficacy.
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