Chronic restraint stress (CRS) | Physiological and psychological stress, Simulate occurrence of human diseases | Modeling conditions are relatively safe without body harmfulness | The modeling is easy, and the stimulus is very different from the real human stress | Sugar water preference; autonomous activity assay; novel object exploration; open field test | Mice; rats | Easier to implement, the process takes 21 days or longer |
Chronic unpredictable mild stress (CUMS) | The classic symptoms of depression namely anhedonia | The change of stress factors leads to the decrease of the adaptive ability of animals and has a more significant stimulus effect | The modeling method is complex, and a variety of stimulus environments need to be prepared randomly | Sugar-water preference, open-field, forced swimming test (rats/mice); tail suspension test (mice) | SD and Wistar rats; mice | Relatively difficult to replicate the same phenotype in different environments |
Chronic social defeat stress (CSDS) | Simulation of human social environmental stress and the main symptoms of human mental illness; social withdrawal | The modeling time is short; the operation process is simple; and the construction scheme is relatively clear | Used only for male animals, ignoring the effects of the animal’s sex; the quality and quantity of pressure sources are difficult to control | Sugar water preference test (SPT); open field testing (OFT); FST; tail suspension test (TST); elevated cross maze test (EPM) | Mice; SD and Wistar rats | Ten consecutive days of chronic stress stimulation; easy to produce the effect of depression |
Learned helplessness (LH) | Subjecting the animal to unpredictable and inevitable stress and leaving the animal helpless | Simple operation; Short consumption time; It\'s a good way to simulate the helpless symptoms of depression | Behavioral changes induced by the model are temporary and return to normal in a week or so | OFT; FST; TST; Morris maze | Mice; rats; dogs; rhesus monkeys | The model has high repeatability and can be obtained in a short time |
Deprivation model (MD) | The abandonment of hope of escape followed by despair results in low mood and loss of interest as the main symptoms of depression | Low cost, simple, fast and reliable; preliminary screening of antidepressants or evaluation of behavioral changes in other models of depression | It is also doubtful whether the acute stress process can produce depressive state, which is inconsistent with the clinical course of depression | Climbing; tail upright; foraging; grooming and other activities were less than that of the normal group | Mice; rats; dogs | The model can be established quickly and sensitively, with high repeatability and consistent depression phenotype |
Olfactory bulbectomy (OBX) | Causes abnormalities in the nervous and endocrine systems, similar to those seen in clinical depression; it has some similarities with the clinical manifestations of Alzheimer’s disease | Chronic administration reverses the behavioral and biochemical changes caused by OBX, similar to the clinical effects of antidepressants | The postoperative recovery time was longer (2 weeks), and there were more differences from the etiology of clinical depression | OFT; Morris maze; elevated cross maze experiment; FST; TST | Mice; rats | The consistency of surgical operation and the repeatability of experimental operation are not high |