Review Article

Oxidative Stress Implications in the Affective Disorders: Main Biomarkers, Animal Models Relevance, Genetic Perspectives, and Antioxidant Approaches

Table 1

Main animal models for the affective disorders (adapted from [59ā€“63]).

Induction methodModelled affective disorders featureExperiment designDescription

Natural behaviourRepetitive/stereotypic behaviour [64]Repetitive behaviour in anxiety assessment testsObsessive-compulsive-like behaviour in common anxiety

Drug administrationBipolar disorder-associated hyperactivity [65]Locomotor activity evaluation in psychostimulants administrationPsychostimulants can cause hyperactivity
Drug-induced anxiety [66]Pentylenetetrazol, sodium lactate, m-chlorophenylpiperazine, cholecystokinin administrationSeveral drugs can be used to generate anxiogenic responses
Withdrawal-induced depression [67]Addictive substances administrationDepression can also occur as a specific symptom of drug withdrawal

Physiological stressManic-like behaviour [68]Locomotor activity, aggressivity, changes in sexual activity during sleep deprivationSleep deprivation (>72ā€‰h) causes manic-like behaviour
Hyperthermia induced anxiety [69]Anxiety assessment in high environmental temperaturesAnxiety-like behaviour can be induced by high environment temperatures
Helplessness-induced depression [70]Iterative physiological stressAnimals learn that no escape conditions are provided; therefore they fail to exhibit escape behaviour also in the absence of the stimuli

Psychological stressResident-intruder paradigm-based aggressivity [71]Locomotor activity, aggressivity, changes in sexual activity during social stressAggressive behaviour can be a collateral effect in resident-intruder paradigm
Ultrasonic vocalizations-induced anxiety [72, 73]Ultrasonic distress in mouse pups separated from their mothersThe decrease in the number of calls, anxiolytic effect
Hyponeophagia-induced anxiety [74]Feeding behaviour during/after anxiogenic stimulus of noveltyNovelty in food or environment suppressed feeding
Maternal deprivation [75, 76]Maternal deprivation during early postnatal phasesAlthough controverted, maternal deprivation during infancy can cause depressive disorders occurrence in early adulthood
Resident-intruder paradigm and social defeat-based depression [77]Depression assessment in males during consecutive cohabituationMales can be exposed to psychological stress as a result of consecutive habitation in cages
Social hierarchization-based depression [78]Depressive behaviour in tree shrews social hierarchy and subordinationNatural depressive behaviour can occur in different species as a result to social hierarchy

Conflictual stimuliVogel-punished drinking [79]Hydration habits in anxietyDrinking behaviour is altered when anxiogenic stimuli are applied
Geller-Seifter task [80]Feeding behaviour in anxiogenic stimulationFeeding behaviour is altered when anxiogenic stimuli are applied
Cognitive Pavlovian [81]Behavioural changes in Pavlovian conditionsWhen disagreeable stimuli are applied anxiety behaviour occurs

Neurosurgical modelOlfactory bulbectomy [82]Behavioural assessment after olfactory bulbectomySpecific depressive behaviour occurs after olfactory bulb removal

Neurodevelopmental modelClomipramine administration [83]Anxiety behaviour in neonatal clomipramine administrationBaby rats exposed to repeated injections of clomipramine develop anxiety-like features in adulthood

Genetic engineeringSelective breeding [84]Manic behaviour assessment in different strainsParticular strain-specific behavioural features
Selective breeding [85]Anxious behaviour during selective breedingIn order to maximize anxious behaviour, the animals are either inbred or outbred
Single gene manipulation [86]Anxious phenotyping and single gene manipulationKnock-out and transgenic mice based on anxiety genes manipulation
Selective breeding [87, 88]Depressive behaviour during selective breedingA strong genetic predisposition to depression can be obtained through high depressive behaviour strains breeding
Genetic and ontogenetic modelling [89]Genetic and ontogenetic modelling of depressive traitsForward or reverse genetic techniques facilitate blockade or stimulation of neuronal activity