Related Experiment Video
Updated: Aug 14, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
Published on: March 9, 2015
[Anxiety structure and catecholamine parameters in patients with rosacea, alopecia areata and lichen ruber planus]
Abstract:
90 patients suffering from selected dermatoses (rosacea, alopecia areata, lichen planus) underwent psychological tests of examination with special regard to verification of their anxiety structures. Urinalysis of catechol amine levels was simultaneously carried out in these patients. The test results proved a marked correlation between psychological factors and the activity of the adrenergic system. High level of activity, emotional unstableness, as well as tendencies to neurotic activities are connected with increased secretion of adrenaline and decreased secretion of noradrenaline++ and dopamine. The lability of catechol amine secretion (statistically significant variation above or below the physiological standard) is the cause of functional disorders.
Related Concept Videos
Adrenergic Agonists: Chemistry and Structure-Activity Relationship
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of the aromatic...
Anxiety: Overview
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Anxiolytic Drugs: Overview
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.
Asthma-I: Introduction
Psychoneuroimmunology: Cardiovascular Disease
A key area of focus in PNI is the relationship between stress and coronary...
Panic Disorder

