Brown Adipose Tissue Activity in Response to Semaglutide Administered to Obese Subjects.

Description

Glucagon like peptide (GLP-1) agonists, such as liraglutide, exenatide, and semaglutide, have been increasingly used as a medication to address the current twin epidemics of diabetes and obesity. Their activities include increasing insulin production by pancreatic beta cells, improving insulin sensitivity in muscles and weight loss. The mechanisms underpinning the weight loss caused by GLP-1 agonists have not yet been fully elucidated, but brown adipose tissue (BAT) appears to play an important role. We propose to assess BAT activity, using infrared thermography camera images, before individuals start weekly administration of semaglutide, at week 2-4, and week 18-20. We hypothesize that this GLP-1 agonist, semaglutide, will cause an increase in BAT activity and a corresponding increase in basal metabolic rate.

Conditions

Obesity

Study Overview

Study Details

Study overview

Glucagon like peptide (GLP-1) agonists, such as liraglutide, exenatide, and semaglutide, have been increasingly used as a medication to address the current twin epidemics of diabetes and obesity. Their activities include increasing insulin production by pancreatic beta cells, improving insulin sensitivity in muscles and weight loss. The mechanisms underpinning the weight loss caused by GLP-1 agonists have not yet been fully elucidated, but brown adipose tissue (BAT) appears to play an important role. We propose to assess BAT activity, using infrared thermography camera images, before individuals start weekly administration of semaglutide, at week 2-4, and week 18-20. We hypothesize that this GLP-1 agonist, semaglutide, will cause an increase in BAT activity and a corresponding increase in basal metabolic rate.

Brown Adipose Tissue Activity in Response to Semaglutide Administered to Obese Subjects.

Brown Adipose Tissue Activity in Response to Semaglutide Administered to Obese Subjects.

Condition
Obesity
Intervention / Treatment

-

Contacts and Locations

Los Angeles

UCLA Health, Los Angeles, California, United States, 90095

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Subjects scheduled to start semaglutide for weight loss (drug not provided by or paid for by the study)
  • * \>18 years of age and willing to participate
  • * Male or post-menopausal females
  • * History of prior neck surgery and /or neck irradiation
  • * Use of beta blocker agents
  • * Use of any other glucose lowering medication
  • * History of neuropathic disorders (e.g. diabetic neuropathy)
  • * Diabetic patients
  • * Individuals without normal thyroid function
  • * Individuals with cancer
  • * Any significant chronic disease or renal, hepatic or endocrine disease
  • * Current smokers
  • * Inability of patient to provide consent either for medical reasons or psychiatric reasons

Ages Eligible for Study

18 Years to

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

University of California, Los Angeles,

Preethi Srikanthan, MD, PRINCIPAL_INVESTIGATOR, Principal Investigator

Study Record Dates

2025-06-01