Ovariectomized Rats
Ovariectomized Rats - Related Videos
08:56
Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
0 Views •
Cited by 7 •
2023
Presented here is a protocol to show that Bazi Bushen capsule (BZBS) can regulate the RANKL/OPG signaling pathway in the ovariectomized rodent model through its estrogen-like effect.
06:05
Anticipatory Food-Reward Elicitation of Appetitive Ultrasonic Vocalizations in Laboratory Rats and Mice
0 Views •
2026
Laboratory rat and mouse ultrasonic vocalizations (USVs) are useful for studying vocal and neural function. This protocol describes a food-reward paradigm that reliably elicits appetitive USVs without mating-related confounds. It details animal conditioning, stimulus presentation, recording, and acoustic analysis, providing a reproducible method for studying affective-motivational and cranial sensorimotor function.
06:49
Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model
0 Views •
2023
Pregnancy establishment is a dynamic process involving complex embryo and uterine crosstalk. The precise contributions of the maternal uterine environment to these processes remain an active area of investigation. Here, detailed protocols are provided to aid in designing in vivo animal models to address these research questions.
07:36
Angiogenesis in the Ischemic Rat Lung
0 Views •
Cited by 3 •
2013
The lung is perfused by both the systemic bronchial artery and pulmonary arteries. In most lung pathologies, it is the smaller systemic vasculature that shows robust neovascularization. Cessation of pulmonary blood flow promotes brisk bronchial angiogenesis. We provide surgical details of inducing left pulmonary artery ischemia that promotes bronchial neovascularization.
07:45
Acute Myocardial Infarction in Rats
0 Views •
Cited by 103 •
2011
The rat model of acute myocardial infarction (AMI) is useful to study the consequence of a MI on cardiac pathophysiological and physiological function.
FAQs
Removing the ovaries eliminates the primary source of circulating estrogen and progesterone, creating a sustained hormone-deficient state. This endocrine change can produce measurable effects in skeletal, cardiovascular, metabolic, and other physiological systems. Researchers can therefore examine how ovarian hormones influence multiple biological processes and assess whether observed changes are associated with hormone deficiency rather than normal reproductive cycling.
Estrogen and progesterone provide the central biological contrast between ovariectomized and intact female rats. Their removal allows researchers to study outcomes under reduced ovarian hormone exposure and then evaluate how those outcomes relate to hormone-dependent physiology. This approach is especially useful when investigating changes that may contribute to bone loss, menopause-related effects, or responses to hormone replacement.
Sham-operated controls help separate effects caused by the surgical experience from effects caused specifically by ovarian hormone deficiency. Comparing both groups under otherwise similar experimental conditions strengthens interpretation of skeletal, endocrine, cardiovascular, or metabolic findings. Without this comparison, researchers may have difficulty determining whether an outcome reflects ovary removal or another consequence associated with the operation itself.
A sound design includes an appropriate sham-operated comparison group and a recovery period before outcome assessment. Researchers also need to monitor changes over time so that endocrine, skeletal, and physiological responses can be distinguished from short-term surgical effects. These considerations improve the ability to attribute later findings to ovarian hormone deficiency and support consistent comparisons between experimental groups.
This model is used when investigators need to examine biological changes associated with ovarian hormone deficiency in a controlled setting. Applications include studying bone loss, cardiovascular and metabolic effects, hormone replacement, osteoporosis treatments, and other conditions influenced by ovarian hormones. Its value comes from allowing these outcomes to be monitored systematically after the endocrine change has been established.
Studies can track changes across skeletal, cardiovascular, metabolic, endocrine, and broader physiological measures. They can also evaluate whether hormone replacement or potential osteoporosis treatments modify those changes. In biology, the model provides a way to connect altered ovarian hormone status with measurable outcomes and to compare treatment responses against an appropriate surgical control over a defined observation period.