Related Experiment Video
Updated: Jun 3, 2026
14:56
Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
Published on: May 6, 2022
Genetic, molecular and physiological insights into human obesity
1Metabolic Research Laboratories, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK. isf20@cam.ac.uk
European Journal of Clinical Investigation
|March 12, 2011
Summary
Genetic factors significantly influence body weight and obesity susceptibility. The discovery of leptin and its role in energy homeostasis offers insights into weight regulation pathways.
Area of Science:
- Genetics
- Endocrinology
- Public Health
Background:
- Obesity and its comorbidities are major global health issues.
- While environmental factors contribute, high heritability indicates a significant genetic role in body weight regulation and obesity susceptibility.
Purpose of the Study:
- To investigate the genetic mechanisms underlying weight regulation and obesity development.
- To explore the role of leptin and its pathways in energy homeostasis.
Main Methods:
- Utilizing genetic approaches to study weight regulation.
- Investigating the impact of leptin, a hormone secreted by adipocytes, on food intake and energy expenditure.
Main Results:
- Leptin's discovery revealed its critical role in regulating body weight via food intake and energy expenditure.
- This hormone is a key component in the systems governing energy homeostasis.
Conclusions:
- Identification of human mutations in leptin and its target genes provides crucial insights.
- Leptin-responsive pathways are vital for regulating body weight, neuroendocrine axes, and immunity.
Related Concept Videos
01:28Human Genetics
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
01:24Obesity
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
01:20Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion
Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
01:25Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
01:18Polygenic Traits
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...