Main description:

Atlas of Histology of the Juvenile Rat should be of interest to toxicologic pathologists, toxicologists, and other biological scientists who are interested in the histomorphology of juvenile rats. For several decades the laboratory rat has been used extensively in nonclinical toxicology studies designed to detect potential human toxicity of drugs, agrochemicals, industrial chemicals, and environmental hazards. These studies traditionally have involved young adult rats that are 8-10 weeks of age as studies are started. It is becoming increasingly apparent that children and young animals may have different responses to drug/chemical exposures, therefore, regulatory agencies are emphasizing toxicology studies in juvenile animals.

While the histologic features of organs from young adult and aged laboratory rats are well known, less is known about the histologic features of organs from juvenile rats. Final histologic maturity of many organs is achieved postnatally, thus immature histologic features must be distinguished from chemical- or drug-related effects. While this postnatal organ development is known to exist as a general concept, detailed information regarding postnatal histologic development is not readily available. The Atlas includes organs that are typically sampled in nonclinical toxicology studies and presents the histologic features at weekly intervals, starting at birth and extending through postnatal day 42.

Contents:

Integumentary System, Including Mammary and Adnexal Glands

Lauren Staska

Musculoskeletal System

Jairo Nunes

Nervous System, Central and Peripheral

Amera Remick

Respiratory System

Melanie Greeley

Gastrointestinal System

Gary Coleman

Liver, Exocrine Pancreas and Salivary Glands

Danielle Brown

Reproductive System, Female

Catherine Picut

Reproductive System, Male

Catherine Picut

Endocrine System

Amera Remick

Immune System

George Parker

Hematopoietic System

Josely Figuieredo

Special Senses (Eye and Ear)

Gary Marit

Urinary System

Danielle Brown

Cardiovascular System

Melanie Greeley