Subsite Awareness in Neuropathology Evaluation of National Toxicology Program (NTP) Studies

Author:

Rao Deepa B.1,Little Peter B.2,Sills Robert C.3

Affiliation:

1. Integrated Laboratory Systems, Inc., Research Triangle Park, North Carolina, USA

2. Experimental Pathology Laboratories, Inc., Research Triangle Park, North Carolina, USA

3. National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA

Abstract

This review article is designed to serve as an introductory guide in neuroanatomy for toxicologic pathologists evaluating general toxicity studies. The article provides an overview of approximately 50 neuroanatomical subsites and their functional significance across 7 transverse sections of the brain. Also reviewed are 3 sections of the spinal cord, cranial and peripheral nerves (trigeminal and sciatic, respectively), and intestinal autonomic ganglia. The review is limited to the evaluation of hematoxylin and eosin–stained tissue sections, as light microscopic evaluation of these sections is an integral part of the first-tier toxicity screening of environmental chemicals, drugs, and other agents. Prominent neuroanatomical sites associated with major neurological disorders are noted. This guide, when used in conjunction with detailed neuroanatomic atlases, may aid in an understanding of the significance of functional neuroanatomy, thereby improving the characterization of neurotoxicity in general toxicity and safety evaluation studies.

Publisher

SAGE Publications

Subject

Cell Biology,Toxicology,Molecular Biology,Pathology and Forensic Medicine

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