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Full-Text Articles in Life Sciences

A High-Fat Diet Alters Genome-Wide Dna Methylation And Gene Expression In Sm/J Mice, Madeline R. Keleher, Rabab Zaidi, Lauren Hicks, Shyam Shah, Xiaoyun Xing, Daofeng Li, Ting Wang, James M. Cheverud Dec 2018

A High-Fat Diet Alters Genome-Wide Dna Methylation And Gene Expression In Sm/J Mice, Madeline R. Keleher, Rabab Zaidi, Lauren Hicks, Shyam Shah, Xiaoyun Xing, Daofeng Li, Ting Wang, James M. Cheverud

Biology: Faculty Publications and Other Works

Background: While the genetics of obesity has been well defined, the epigenetics of obesity is poorly understood. Here, we used a genome-wide approach to identify genes with differences in both DNA methylation and expression associated with a high-fat diet in mice. Results: We weaned genetically identical Small (SM/J) mice onto a high-fat or low-fat diet and measured their weights weekly, tested their glucose and insulin tolerance, assessed serum biomarkers, and weighed their organs at necropsy. We measured liver gene expression with RNA-seq (using 21 total libraries, each pooled with 2 mice of the same sex and diet) and DNA methylation …


The Effect Of Dietary Fat On Behavior In Mice, Madeline R. Keleher, Rabab Zaidi, Kayna Patel, Amer Ahmed, Carlee Bettler, Cassondra Pavlatos, Shyam Shah, James M. Cheverud Dec 2018

The Effect Of Dietary Fat On Behavior In Mice, Madeline R. Keleher, Rabab Zaidi, Kayna Patel, Amer Ahmed, Carlee Bettler, Cassondra Pavlatos, Shyam Shah, James M. Cheverud

Biology: Faculty Publications and Other Works

Purpose Obesity is linked to cognitive dysfunction in humans and rodents, and its effects can be passed on to the next generation. However, the extent of these effects is not well understood. The purpose of this study was to determine the effect of a prenatal maternal high-fat diet and an individual high-fat diet in inbred mice. Methods We varied maternal diet and offspring diet to test the hypothesis that a high-fat diet would increase anxiety, reduce activity levels, and impair nest-building. First, we fed a high-fat (HF) or low-fat (LF) diet to genetically identical female Small (SM/J) mice and mated …


The Affective Disturbance Of Ethanol Withdrawal On C57bl/6j And C57bl/6nj Mice, Eric L. Levasseur May 2018

The Affective Disturbance Of Ethanol Withdrawal On C57bl/6j And C57bl/6nj Mice, Eric L. Levasseur

Honors College

The C57BL/6 (B6) mouse is the most commonly used inbred mouse strain in biomedical research. While the B6 mouse originated at The Jackson Laboratory, a number of separate breeding colonies are now maintained at various sites, resulting in genetic drift that has led to the emergence of both genotypic and phenotypic differences among these colonies. Two distinct substrains of B6 mice, C57BL/6J (B6J) and C57BL/6NJ (B6N), have been shown to differ on several addiction-related phenotypes, such as ethanol preference and locomotor responses to psychostimulants. Therefore, the aim of this study was to assess possible differences in depression- and anxiety-like behaviors …


Morphogenetic Defects Underlie Superior Coloboma, A Newly Identified Closure Disorder Of The Dorsal Eye, Jennifer C. Hocking, Jakub K. Famulski, Kevin H. Yoon, Sonya A. Widen, Cassidy S. Bernstein, Sophie Koch, Omri Weiss, Forge Canada Consortium, Canada, Seema Agarwala, Adi Inbal, Ordan J. Lehmann, Andrew J. Waskiewicz Mar 2018

Morphogenetic Defects Underlie Superior Coloboma, A Newly Identified Closure Disorder Of The Dorsal Eye, Jennifer C. Hocking, Jakub K. Famulski, Kevin H. Yoon, Sonya A. Widen, Cassidy S. Bernstein, Sophie Koch, Omri Weiss, Forge Canada Consortium, Canada, Seema Agarwala, Adi Inbal, Ordan J. Lehmann, Andrew J. Waskiewicz

Biology Faculty Publications

The eye primordium arises as a lateral outgrowth of the forebrain, with a transient fissure on the inferior side of the optic cup providing an entry point for developing blood vessels. Incomplete closure of the inferior ocular fissure results in coloboma, a disease characterized by gaps in the inferior eye and recognized as a significant cause of pediatric blindness. Here, we identify eight patients with defects in tissues of the superior eye, a congenital disorder that we term superior coloboma. The embryonic origin of superior coloboma could not be explained by conventional models of eye development, leading us to …