Category: Experimental Pharmacology
Acute Toxicity Testing and LD50 Determination per OECD Guidelines
1. Introduction Acute toxicity testing represents a fundamental component of preclinical toxicological evaluation, providing critical data on the adverse effects resulting from a single or...
Determination of pA2 Values of Antagonists
Introduction/Overview The quantitative analysis of drug-receptor interactions represents a cornerstone of modern pharmacology. Among the various parameters used to characterize pharmacological antagonists, the pA2 value...
Study of Drugs Acting on the Isolated Rat Ileum (Agonists and Antagonists)
Introduction/Overview The isolated rat ileum preparation represents a fundamental and historically significant in vitro bioassay in experimental pharmacology. Its utility stems from the dense innervation...
Hepatoprotective Activity Against Carbon Tetrachloride or Paracetamol-Induced Toxicity
Introduction The liver, as the principal organ for xenobiotic metabolism, is perpetually susceptible to injury from chemical agents. Hepatoprotective activity refers to the capacity of...
Hepatoprotective Activity Against Carbon Tetrachloride and Paracetamol-Induced Toxicity
1. Introduction The liver, as the principal organ for xenobiotic metabolism, is perpetually exposed to potential toxic insults. Hepatoprotection refers to the pharmacological or therapeutic...
Passive Avoidance Test: Step-down and Step-through Paradigms
1. Introduction The passive avoidance test represents a cornerstone behavioral paradigm in preclinical neuroscience and psychopharmacology. It is designed to assess learning and memory, specifically...
Morris Water Maze for Spatial Learning and Memory
1. Introduction The Morris Water Maze (MWM) represents a cornerstone behavioral paradigm in neuroscience and psychopharmacology for the assessment of spatial learning and memory. Developed...
Forced Swim Test and Tail Suspension Test for Antidepressant Activity
1. Introduction/Overview The discovery and development of psychopharmacological agents, particularly antidepressants, rely heavily on validated preclinical behavioral models. Among these, the Forced Swim Test (FST)...
Bioassay of Acetylcholine and Histamine: Matching, Interpolation, Three-Point, and Four-Point Methods
1. Introduction Bioassay represents a fundamental technique in quantitative pharmacology for estimating the concentration or potency of a physiologically active substance by measuring its biological...
Histamine-induced Bronchoconstriction in Guinea Pigs
1. Introduction Histamine-induced bronchoconstriction in the guinea pig represents a cornerstone experimental model in respiratory pharmacology. This paradigm involves the administration of histamine, a key...