Related Experiment Video

Updated: Jul 19, 2026

An Acupoint Catgut-embedding Therapy for Treating Obesity
04:50

An Acupoint Catgut-embedding Therapy for Treating Obesity

Published on: April 4, 2025

Treating obesity: does antagonism of NPY fit the bill?

Sadaf Farooqi1

  • 1University Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 2QQ, United Kingdom.

Cell Metabolism
|October 3, 2006
PubMed

Insights

A new drug targeting the neuropeptide Y5 receptor (NPY5R) led to modest weight loss in obese humans. This supports the idea that NPY influences energy balance through multiple interconnected pathways.

Area of Science:

  • Metabolic research
  • Endocrinology
  • Neuroscience

Background:

  • Neuropeptide Y (NPY) is implicated in regulating energy homeostasis.
  • Rodent studies suggested that blocking the NPY Y5 receptor (NPY5R) could promote weight loss.

Discussion:

  • This study investigated the efficacy of a selective NPY5R antagonist in human subjects.
  • A one-year randomized, placebo-controlled trial was conducted on overweight and obese individuals.

Key Insights:

  • Administration of the NPY5R antagonist resulted in modest weight loss in human participants.
  • The findings align with predictions from preclinical rodent studies.

Outlook:

  • The results suggest that NPY plays a role in energy balance through complex, overlapping pathways.
  • Further research may explore refining NPY-targeting therapies for obesity management.

More Related Videos

Multidisciplinary Approach to Obesity Management: A Case Report05:10

Multidisciplinary Approach to Obesity Management: A Case Report

Published on: May 30, 2025

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats06:28

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats

Published on: April 28, 2023

Related Concept Videos

Regulation of Food Intake01:30

Regulation of Food Intake

Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
Drug Dosing: Obese Patients01:21

Drug Dosing: Obese Patients

In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics 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...
Obesity01:24

Obesity

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...
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion01:20

Pharmacokinetics 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...