Undesired Effects of Bioinsecticides Molecules in Wistar Rats: Case of Spirotetramat, Citrulus Colocynthis and Cleome Arabica Extracts

The use of pesticides is becoming an indispensable technique in most agricultural practices, regardless of the level of development of the country. Currently, the pesticides used are often less toxic and more specific and are based on insect physiology. Recent studies indicate that pesticide intoxication induces oxidative stress. This work aims to study the neurobehavioral consequences of the administration of two insecticides currently widely used in agriculture: spirotetramat (an inhibitor of lipid synthesis in insects) and the ethanolic extract of Citrullus colocynthis (a plant endemic to the Algerian Sahara) and the ethanolic extract of Cleome arabica (Capparidaceae) The different behavioral tests (elevated cross maze, open fields and forced swimming) show that the have a significant impact on the degree of anxiety of rodents.These products significantly influence the biochemical parameters (blood sugar, cholesterol, triglycerides, urea, creatinine), the hormone Adreno CorticoTropic Hormone, acetylcholine esterase,

The Effect of Stressor Level Grading on the Stimulus Seeking Behavior of Rats Differing in Emotional Reactivity1

The Effect of Stressor Level Grading on the Stimulus Seeking Behavior of Rats Differing in Emotional Reactivity1 A natural disaster — such as a flood — is a sequence of events: swollen water level leading to the flooding of homesteads — primary stressor and later environmental consequences — secondary stressor syndrome. In order to be valid, an experimental model must ensure similarity of the stress-evoked behavioral symptoms. The most frequently administered behavioral tests measure exploratory behavior in the broad sense (we used the following test battery: self-exposition chamber, open field and elevated cross-maze). We also included emotional reactivity in the experimental design in order to test the idea that lower emotional reactivity alleviates the consequences of stress and therefore acts preventively. Reduced emotional reactivity and increased stressor intensity additively contribute to increased exploratory behavior. A main handling effect is found for most indices of emotional behavior. The proposed experimental model seems to meet two important criteria: it has face validity and it evokes very clear behavioral consequences, ones which are universal for most indices of exploratory behavior