Biology Commons^™

Effect Of Voluntary Exercise And Diet On The Unfolded Protein Response In The Brain Of Mice, Yu Ho Kim

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The medical costs for many chronic diseases are increasing dramatically and placing a major financial burden on nations and individuals in both developed and developing countries. A number of chronic diseases, such as obesity, type 2 diabetes and some neurodegenerative diseases are all attenuated by a history of physical activity suggesting that they may be interconnected in some way. It has been suggested that cellular stress is a major factor promoting these chronic diseases.

Cellular stress occurs in a specific compartment within the cell, the endoplasmic reticulum, whose normal function is in the synthesis and folding of proteins into the …

Rhythmic Leptin Is Required For Weight Gain From Circadian Desynchronized Feeding In The Mouse, Deanna M. Arble, Martha H. Vitaterna, Fred W. Turek

Biological Sciences Faculty Research and Publications

The neuroendocrine and metabolic effects of leptin have been extensively researched since the discovery, and the later identification, of the leptin gene mutated within the ob/ob mouse. Leptin is required for optimal health in a number of physiological systems (e.g. fertility, bone density, body weight regulation). Despite the extensive leptin literature and many observations of leptin’s cyclical pattern over the 24-hour day, few studies have specifically examined how the circadian rhythm of leptin may be essential to leptin signaling and health. Here we present data indicating that a rhythmic leptin profile (e.g. 1 peak every 24 hours) leads to excessive …

Diet Of Three Mormoopid Bats (Mormoops Blainvillei, Pteronotus Quadridens, And Pteronotus Portoricensis ) On Puerto Rico, Ashley K. Rolfe

Master's Theses and Doctoral Dissertations

This study used visual analysis to determine the percent volume and percent frequency of orders of insects in the guano of the Antillean ghost-faced bat (Mormoops blainvillei), sooty mustached bat (Pteronotus quadridens), and Puerto Rican mustached bat (Pteronotus portoricensis). The most common orders for all three species were Coleoptera, Hymenoptera, and Lepidoptera, although the relative proportions of these orders differed among species. Variation in diet was primarily due to species, but season, habitat, and sex also affected the composition of insects in the feces. In addition, species-level identification of prey was achieved through molecular techniques …