The Diabetes & Obesity Research Institute offers a variety of clinical and metabolic services for both USC DORI investigators and external diabetes and obesity researchers.

DORI Testing Cores

DORI Clinical Services Core

The objective of the DORI Clinical Services Core is to provide expert, convenient, and affordable obesity- and diabetes- related clinical services to investigators at the USC Diabetes & Obesity Research Institute (DORI) and external diabetes and obesity researchers.

The Clinical Services Core is supported by a full-time registered nurse and several part-time phlebotomists, and a full-time administrator to facilitate scheduling and billing. The clinical service core offers outpatient beds, equipment for body weight and body fat measurements, including DEXA, fasting blood draws, oral glucose tolerance testing, a blood processing room, and private rooms for behavioral testing and administration of questionnaires. 

DORI Assay Core Management

Center Manager – Christina Ayala, MPH
Phone: 323-442-2500

Faculty Director – Katie Page, MD
Phone: 323-442-2804

DORI Metabolic Assay Core

The objective of the Metabolic Assay Core (MAC) is to provide assay services to investigators of the USC Diabetes and Obesity Research Institute (DORI), and non-USC DORI investigators. The MAC provides the measurement of hormones, cytokines, lipids and carbohydrates in both human and animal biologic fluids. Any other assays in mind, please let us know to discuss options.

Investigators will pay a fee-for-service that covers the cost of reagents, supplies, a percentage of personnel salary, and instrument usage. The measurement of assays will utilize modern instrumentation run by experienced assay technician(s) in a reliable, quality-controlled environment. Equipment used to perform assays includes a Bio Tek plate reader, YSI 2900D Biochemistry Analyzer, MagPix instrument using Luminex xMAP technology, and NanoDrop 2000.

DORI Assay Core Management

Lab Manager – Lilit Baronikian, BS
Phone: 323-865-3379 or 818-642-4838

Administrator – Christina Ayala, MPH
Phone: 323-442-2500

Faculty Director – Dr. Joyce Richey, PhD
Phone: 323-442-1939

CHLA Saban Rodent Metabolic Core

The CHLA Saban Rodent Metabolic Core offers access to state-of-the-art technology and high quality metabolic phenotyping services to researchers studying diabetes, obesity and metabolism. Experiments are conducted at CHLA by our highly trained and experienced core personnel using the most up to date, standardized techniques.


Body Composition analysis  •  Indirect calorimetry    Locomotor activity  •   Food intake  •  Sample collection    Hormone assay  •  Lipid assay  •  Core body temperature  •  Consultation and training

Please contact Core for fee structure


Interim Director – Rohit Kohli

For questions & inquiries

Location – Children’s Hospital of Los Angeles
4546 Sunset Blvd.
SRT, Room 303 B
Los Angeles, CA 90027

Annual DORI Symposium

Check out the latest in diabetes research from our 2020 DORI Symposium; featuring doctors, scientists and researchers from top universities and research institutes across the globe.