TY - JOUR KW - Animals KW - Biomedical Research KW - Computer Simulation KW - Disease Models, Animal KW - Estrus KW - Female KW - Humans KW - Mice KW - microbiota KW - Models, Animal KW - Rabbits KW - Rats KW - Sheep KW - Species Specificity KW - Swine KW - Swine, Miniature KW - Vagina KW - Vaginal Diseases KW - Vaginal microbiome KW - Vaginal tissue model AU - Jennifer M. McCracken AU - Gisele A. Calderon AU - Andrew J. Robinson AU - Courtney N. Sullivan AU - Elizabeth Cosgriff-Hernandez AU - Julie C. E. Hakim AB - While developments in gynecologic health research continue advancing, relatively few groups specifically focus on vaginal tissue research for areas like wound healing, device development, and/or drug toxicity. Currently, there is no standardized animal or tissue model that mimics the full complexity of the human vagina. Certain practical factors such as appropriate size and anatomy, costs, and tissue environment vary across species and moreover fail to emulate all aspects of the human vagina. Thus, investigators are tasked with compromising specific properties of the vaginal environment as it relates to human physiology to suit their particular scientific question. Our review aims to facilitate the appropriate selection of a model aptly addressing a particular study by discussing pertinent vaginal characteristics of conventional animal and tissue models. In this review, we first cover common laboratory animals studied in vaginal research-mouse, rat, rabbit, minipig, and sheep-as well as human, with respect to the estrus cycle and related hormones, basic reproductive anatomy, the composition of vaginal layers, developmental epithelial origin, and microflora. In light of these relevant comparative metrics, we discuss potential selection criteria for choosing an appropriate animal vaginal model. Finally, we allude to the exciting prospects of increasing biomimicry for in vitro applications to provide a framework for investigators to model, interpret, and predict human vaginal health. BT - Reproductive Sciences DA - 2021-06 DO - 10.1007/s43032-021-00529-y IS - 6 LA - eng N2 - While developments in gynecologic health research continue advancing, relatively few groups specifically focus on vaginal tissue research for areas like wound healing, device development, and/or drug toxicity. Currently, there is no standardized animal or tissue model that mimics the full complexity of the human vagina. Certain practical factors such as appropriate size and anatomy, costs, and tissue environment vary across species and moreover fail to emulate all aspects of the human vagina. Thus, investigators are tasked with compromising specific properties of the vaginal environment as it relates to human physiology to suit their particular scientific question. Our review aims to facilitate the appropriate selection of a model aptly addressing a particular study by discussing pertinent vaginal characteristics of conventional animal and tissue models. In this review, we first cover common laboratory animals studied in vaginal research-mouse, rat, rabbit, minipig, and sheep-as well as human, with respect to the estrus cycle and related hormones, basic reproductive anatomy, the composition of vaginal layers, developmental epithelial origin, and microflora. In light of these relevant comparative metrics, we discuss potential selection criteria for choosing an appropriate animal vaginal model. Finally, we allude to the exciting prospects of increasing biomimicry for in vitro applications to provide a framework for investigators to model, interpret, and predict human vaginal health. PY - 2021 SP - 1759 EP - 1773 ST - Animal Models and Alternatives in Vaginal Research T2 - Reproductive Sciences TI - Animal Models and Alternatives in Vaginal Research: a Comparative Review VL - 28 SN - 1933-7205 ER -