Exploring Connections Between Obesity and Alzheimer’s Research
Exploring Connections Between Obesity and Alzheimer’s Research
In recent years, the link between obesity and cognitive decline, specifically Alzheimer’s disease, has garnered significant attention. One pivotal factor in this investigation is a grant awarded to Associate Professor of Biochemistry and Pharmacology Derick Han from the National Institutes of Health (NIH), amounting to $405,000, aimed at uncovering the complex relationship between these two pressing health issues.
The Impact of Obesity on Brain Health
Obesity has emerged as a major health challenge globally, contributing not just to physical ailments but also to neurological disorders. The connection between high-fat and high-sugar diets and Alzheimer’s disease is evident, yet the underlying mechanisms remain largely unexplored. Han's research aims to bridge this knowledge gap by probing how obesity influences liver function, which in turn affects brain health. This study seeks to shed light on how obesity-related liver issues may contribute to the onset of Alzheimer’s.
How the Liver Affects the Brain
To understand the interplay between the liver and the brain, Han is employing cutting-edge techniques such as spatial proteomics. This method allows researchers to observe the localization of proteins within various regions of both the brain and liver. According to Han, the liver plays a crucial role in supporting brain function through metabolic regulation and the detoxification of harmful substances. However, obesity often leads to fatty liver disease, which could adversely impact this relationship.
Collaboration with Fellow Researchers
Dr. Han is collaborating with Rachita Sumbria, a former colleague at KGI, who is now an associate professor at Chapman University’s School of Pharmacy. Their combined expertise will drive this research towards understanding not only the effects of obesity on the liver-brain axis but also its interrelation with alcohol-induced liver damage.
Investigating Liver Proteins
In their previous studies, Han and Sumbria identified liver proteins that could be influential in Alzheimer’s disease progression alongside alcohol consumption. This upcoming research will evaluate whether similar pathways are implicated when exploring obesity as a risk factor for Alzheimer’s. The emphasis will be on liver steatosis, a condition caused by excessive fat storage in the liver, and how it alters liver functions that are vital for brain protection.
The Role of Amyloid-? and APP in Alzheimer’s
An intriguing aspect of their research is centered on the relationship between liver proteins and amyloid-? (A?), which is crucial in the pathology of Alzheimer’s disease. Han and his team have found that chronic alcohol consumption can diminish the function of hepatic lipoprotein receptor-related protein 1 (LRP1). This receptor is key to clearing A? from the brain, thus its dysfunction could enable the accumulation of A?, leading to Alzheimer’s. Additionally, the research will investigate whether obesity similarly disrupts LRP1 functionality, providing insight into how this dynamic can promote neurodegenerative processes.
Future Directions and Objectives
The overarching goal of Han's research is to clarify how liver steatosis from obesity can enhance the production of amyloid precursor protein (APP) while reducing LRP1. This balance is critical for understanding the metabolic interactions that may contribute to Alzheimer's pathology. By illuminating these processes, the team aims to find preventive or therapeutic strategies that could mitigate the risk or progression of Alzheimer's linked to obesity.
About Keck Graduate Institute
Established in 1997, Keck Graduate Institute is a premier institution that focuses on innovative education in the life sciences sector. As part of The Claremont Colleges, KGI offers a unique blend of academic rigor and practical experience in biotech, healthcare, and research fields. The institute continues to position itself at the forefront of research and education, preparing its students for impactful careers in science and healthcare.
Frequently Asked Questions
What is the focus of Dr. Derick Han's research?
Dr. Han's research focuses on understanding the relationship between obesity, liver health, and Alzheimer’s disease, exploring how obesity impacts the liver-brain axis.
How might obesity influence Alzheimer's disease?
Obesity can lead to liver issues such as fatty liver, which may disrupt metabolic processes and contribute to the development of Alzheimer's through impacts on brain function and toxic protein regulation.
What techniques will be used in this research?
Han will utilize spatial proteomics to analyze and observe key proteins in different regions of the brain and liver to understand the obesity-related impacts on the liver-brain connection.
Who are Dr. Han's collaborators?
Dr. Han is collaborating with Rachita Sumbria, an expert in pharmacy, to explore the connections between liver damage from both obesity and alcohol consumption in relation to Alzheimer’s.
What are the potential implications of this research?
This research could lead to new insights into how obesity impacts brain health, potentially informing future preventive measures or therapies for Alzheimer’s disease.
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