Related Experiment Video
Updated: Jan 25, 2026

Antibody Profiling by Luciferase Immunoprecipitation Systems LIPS
Published on: October 7, 2009
Premaxillary Injection for Perioral Rejuvenation and Lip Enhancement.
Thuy-Van T Ho1, Eric W Cerrati2, Nimit D Gandhi3
1Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology, University of Illinois at Chicago, Chicago, IL.
Premaxillary hyaluronic acid filler injections significantly improved upper lip projection in patients. This study provides evidence for premaxillary filler use in perioral rejuvenation.
Area of Science:
- Aesthetic medicine and facial rejuvenation procedures.
- Dermatology and plastic surgery research.
Background:
- Investigating the impact of premaxillary filler injections on facial aesthetics.
- First study to assess premaxillary filler effects on nasal tip projection, upper lip projection, and vermilion height.
Purpose of the Study:
- To analyze changes in nasal tip projection (Goode ratio) and upper lip projection (Z angle) after hyaluronic acid injection.
- To measure alterations in upper lip vermilion height.
- Hypothesizing increased projection and height post-treatment.
Main Methods:
- Prospective cohort study of 20 patients undergoing premaxillary hyaluronic acid filler injection.
- Assessment of nasal tip projection, upper lip projection, and vermilion height using Goode ratio, Z angle, and lip vermilion height ratio.
- Photographic analysis from baseline to post-treatment.
Main Results:
- No significant change in nasal tip projection (Goode ratio).
- Significant increase in upper lip projection (decrease in Z angle, P < 0.001).
- Trend towards increased upper lip vermilion height, not statistically significant (P = 0.561).
Conclusions:
- Premaxillary filler treatment effectively enhances upper lip projection.
- Safe premaxillary filler injection is a valuable option for perioral rejuvenation.
Related Concept Videos
Self-Evaluation: Self-Enhancement and Self-Verification
Bioavailability Enhancement: Drug Solubility Enhancement
Bioavailability Enhancement: Drug Permeability Enhancement
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
MOSFET: Enhancement Mode
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
Enhanced Elimination of Poison
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...

