Related Experiment Video
Updated: Jun 21, 2026

Subcutaneous Neurotrophin 4 Infusion Using Osmotic Pumps or Direct Muscular Injection Enhances Aging Rat Laryngeal Muscles
Published on: June 13, 2017
[Controversy: botulinum toxin, does it prevent cutaneous aging?]
1anny.cohen-letessier@wanadoo.fr
Abstract:
By blocking muscular contraction, even if this effect is reversible, botulinum toxin injected early and regularly to prevent aging modifies the facial traits and can result in muscular and cutaneous atrophy. Mechanical information is indispensable to cell survival and conditions the function of fibroblastic synthesis. Aging cannot be reduced to the facial lines; botulinum toxin cannot prevent the other parameters of age such as drying, pigmentation problems, vascular problems, and loss of volume.
Insights
Botulinum toxin injections for anti-aging can alter facial features and cause muscle atrophy, despite being reversible. It does not prevent other aging signs like dryness or volume loss.
Area of Science:
- Dermatology and Aesthetic Medicine
- Cell Biology and Physiology
Context:
- Botulinum toxin (BTX) is widely used for aesthetic purposes to reduce dynamic wrinkles.
- Early and regular BTX injections aim to prevent aging by blocking muscular contraction.
Purpose:
- To evaluate the long-term effects of botulinum toxin on facial tissues.
- To analyze the impact of BTX on cellular functions related to aging.
Summary:
- BTX can reversibly modify facial traits by blocking muscle contraction, potentially leading to muscular and cutaneous atrophy.
- Mechanical cues are vital for cell survival and fibroblast synthesis, processes not addressed by BTX.
- Aging encompasses more than wrinkles, including pigmentation, vascular issues, dryness, and volume loss, which BTX does not prevent.
Impact:
- Highlights potential adverse effects of regular BTX use, such as tissue atrophy.
- Emphasizes the multifactorial nature of aging beyond dynamic lines.
- Suggests a need for comprehensive anti-aging strategies beyond BTX injections.
Related Concept Videos
Botulism
Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin
The binding of dantrolene to the RYR1...
The Effect of Aging on Tissues
Tetanus
Skeletal Muscle Relaxants: Therapeutic Uses
Acne Infection