Phenotyping Core

About The Phenotyping Core

The Phenotyping Core provides pathology support and collaborations, and translational animal research expertise at Johns Hopkins.

Dr. Cory Brayton serves as director of the Phenotyping Core.

TESTING, PATHOLOGY etc options...   
We are open, but MRB lab access is still restricted (by JH) .
Please CONTACT US  before submitting.


SHORT COURSE - ON LINE - July 13-17, 2020

  • The Core specializes in anatomic and clinical pathology, and mouse models of disease, and has expertise in diverse species, research areas and testing modalities.
  • Large or long term projects involving pathology or other specialist input, usually merit collaboration with salary support of participating faculty.
  • It is expected that JHU policies for authorship and acknowledgment will be followed.
  • Please contact relevant faculty BEFORE beginning a project or submitting specimens.
  • Phenotyping core submissions are scheduled through the iLAB system (note: JHED login is required).
  • Phenotyping core hours usually are 9am-5pm on JH work days.
  • Same day testing may not be available for specimens submitted after 4pm.
  • NO hazardous specimens, and NO human specimens are tested.
  1. Review the list of available tests, options.
  2. Use the JHU iLAB system (JHED login required) for additional test information, scheduling, payment.
  3. Contact us by email or phone (below).


  • For general enquiries, please call or email the Phenotyping Core directly:
  • Phone: 410-502-3050
  • Email:
  • Address:
  • Johns Hopkins University School of Medicine
  • Edward D. Miller Research Building, Suite 851
  • 733 N Broadway
  • Baltimore, MD 21205
  • (see map)

Key Personnel

Cory Brayton, DVM, Dip. ACLAM, Dip. ACVP
Nadine Forbes McBean, MS
  • Role: Phenotyping Core Research Technician
  • Expertise: Necropsy, hematology, clinical chemistry, Faxitron radiography
  • Email:

Affiliated Faculty

The phenotyping core interacts with Johns Hopkins faculty and cores with diverse phenotyping and research expertise ranging from live animal imaging to metabolomics.  View a list of participating faculty, and their areas of expertise. Also search iLAB for other JH research cores.

Segmented filamentous bacteria in the intestine of a mouseNecropsy and histopathology to characterize and confirm important research findings, and diagnose unexpected findings or problems in a colony or research project.
[Segmented filamentous bacteria (intestine) affect immune development and responses in mice and other species]



Faxitron of Mouse PawHigh resolution radiography for small animals and specimens. [mouse foot]



Pre-neoplastic changes in the small intestineBoard certified pathologists can analyze and score neoplastic, toxic, and inflammatory changes.