Figure 1. Reduced insulin signaling maintains “youthful” response in aging flies and can potentially prevent age-related neuronal decline.

Reduced Insulin Levels Can Prolong Neuron Longevity

By Maryna Mullerman ’20 Reduced insulin-like signaling (IIS) can lead to diabetes and damage of neuronal function in metabolism. However, chronically lowered insulin/insulin-like growth factor (IGF) may improve neurodegenerative disease defects. Hrvoje Augustin and researchers at University College London analyzed the escape response mechanism of the fly Drosophila melanogaster and the effects of genetically weakened…

Figure 1. Human viability depends on many genetic variants, including those of evolutionary importance.

What Affects Human Viability?

By Maryna Mullerman ’20 Human viability is the survival of individuals after birth, and more research is needed to understand how associated genetic factors affect human survival and life expectancy. Dr. Hakhamanesh Mostafavi and researchers at Columbia University in New York developed a method to recognize genetic variants that influence human survival. The proposed method…

Figure 1. A honeybee larva can either become a queen or a worker bee depending on the food and nutrients it consumes.

The Role of Plant RNA in Honeybee Caste Development and Evolution

By Maryna Mullerman ’20 Doctor Kegan Zhu and researchers from Nanjing University in China investigated the effects of plant microRNAs (miRNAs) on larval development and differentiation in honeybees. The study’s results provide another approach to the understanding of co-evolution of different species and cross-kingdom interactions. The researchers hypothesized that miRNAs from different sources affected larval…