Related Experiment Video
Updated: Aug 9, 2026

Pressure Controlled Ventilation to Induce Acute Lung Injury in Mice
Published on: May 5, 2011
[Biochemico-pharmacological mechanisms and the relation between the anticalorigenic, hypothermic and antihypoxic
Abstract:
Administration of adenosine into mice induced a decrease in oxygen consumption (anticalorigenic effect), body temperature (hypothermal effect) and protected against acute hypoxia (antihypoxic action); all these effects are closely correlated. Isopropyl noradrenaline and theophylline prevented but propranolol and dipiridamol increased these effects of adenosine. Being administered into mice adenosine decreased both cAMP content (in skeletal muscles and kidney) and respiration in kidney homogenates. These adenosine effects appear to be realized via the following chain: A1-receptors----decrease in cellular cAMP content----inhibition of tissue oxygen consumption----development of anticalorigenic reactions----hypothermal effects----antihypoxic actions.
Related Concept Videos
Adrenergic Agonists: Direct-Acting Agents
These agents can be classified...
Adrenergic Agonists: Indirect-Acting Agents
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
Adrenergic Agonists: Therapeutic Classification
Vasopressor or pressor agents: They increase blood pressure and function as cardiac stimulants. Examples include endogenous catecholamines (norepinephrine and dopamine) and synthetic agents (phenylephrine).
Bronchodilators: β2-agonists can relax bronchial muscles and widen airways. They are commonly used for treating obstructive pulmonary...
Adrenergic Agonists: Therapeutic Uses
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and anaphylaxis:...
Adrenergic Antagonists: Pharmacological Actions of ɑ-Receptor Blockers
α1-blockers: These drugs inhibit α1-adrenoceptors on smooth muscle cells, resulting in vasodilation. This vasodilation lowers blood pressure, making α1-blockers valuable in treating hypertension. Additionally, α1-blockers effectively address urinary obstruction...
Adrenergic Antagonists: ɑ and β-Receptor Blockers

