The Duca Lab (https://med.umn.edu/bio/frank-duca) in the Department of Integrative Biology and Physiology at the University of Minnesota is seeking a highly motivated Postdoctoral Associate to join our team. Funded by NIH and USDA, this position offers an exciting opportunity to conduct cutting-edge multidisciplinary research that combines physiology, neuroscience, nutritional sciences, and microbiology.
The Duca lab is extremely interested in how dietary and environmental exposures impact the development of obesity and diabetes. Specifically, using a variety of sophisticated in-vivo approaches, our lab examines how gut-brain signaling influence both energy and glucose homeostasis either via the peripheral nervous system or acting at the brain via circulating factors. We are extremely interested in how different dietary components, like fat, sugar, and fiber, impact metabolic homeostasis, and how the gut microbiome mediates these impacts. We study how probiotics, prebiotics, or metabolites produced from the gut microbiome affect host metabolism either directly at the intestine, or remotely at the peripheral nervous system, liver, or brain. Additionally, we examine how exposure to different environmental xenobiotics, like herbicides, pesticides, or antimicrobials impact the gut microbiome and subsequent host health. More recently, we have begun exploring how the gut-brain axis bidirectionally regulates development of certain cancers.
Position Overview:
We are looking for a motivated and enthusiastic scientist that is interested in learning more about the gut-brain axis and metabolic disease. In this role, you will have the opportunity to work on several exciting projects examining the impact of the gut microbiome on gut-brain signaling pathways, and learn sophisticated surgical techniques and in-vivo techniques for mice and rats, like vascular and intestinal cannulations, ganglia injections, glucose clamps, and use of Sable Promethion indirect calorimetry system. The Duca Lab is a very collaborative group and you will have opportunities to mentor undergraduate and graduate students. Previous experience in metabolic disease, neuroscience, or gut microbiome research is preferred. The majority of work will be in-vivo in rodent models, therefore experience with rodent surgery is preferred, especially stereotaxic or vascular cannulation.
Potential projects include but are not limited to: effect of bacterially derived metabolites on peripheral nervous system and CNS function, better understanding gut vagal sensory pathways, studying the impact of dietary fiber on enteroendocrine cell function and signaling, impact of diet and gut microbiome on success of GLP-1R agonists, and role of gut-brain axis in intestinal cancers.
Responsibilities Include:
Research- 90%
Conduct animal (rat and mouse) handling, husbandry, breeding, colony maintenance, behavioral testing, including, but not limited to metabolic phenotyping, body composition, food intake and preference measurements, glucose clamps, glucose tolerance tests, and cognitive and anxiety/addiction potency testing.
Assist with and eventually independently perform various survival surgeries: vascular surgery, intestinal cannulations, stereotaxic surgery, and nodose and dorsal root ganglia injections.
Chemogenetic and optogenetic studies
Inject various compounds and solutions into experimental animals.
Collect tissue and fluid samples (e.g., body fat, brain tissue, blood) from experimental animals; store and analyze the tissue (e.g., ESLISA kits, PCR, immunohistochemistry, RNAscope).
Potential multi-omic bioinformatic analyses: gut microbiome, RNAseq, scRNAseq, and metabolomics
Keep meticulously detailed records of all experiments and procedures in a laboratory notebook; perform statistical analyses of data obtained from experiments and render interpretations of the data.
Mentoring - 10%
Mentor undergraduate and graduate students to help with various projects.
Instruct students, fellows and other inexperienced professional persons in proper laboratory methods and procedures.
Writing and Presenting - 10%
Present research summary in national and international meetings in oral and poster format by preparing abstracts and slides for presentation.
Write manuscripts
Apply for postdoctoral fellowships or external grants under the guidance of PI.