Effect of mesotherapy with nanochip in the treatment of facial rejuvenation

Poly-l-lactic acid microspheres delay aging of epidermal stem cells in rat skin

Objective

Injectable skin fillers offer a wider range of options for cutaneous anti-aging and facial rejuvenation. PLLA microspheres are increasingly favored as degradable and long-lasting fillers. The present study focused solely on the effect of PLLA on dermal collagen, without investigating its impact on the epidermis. In this study, we investigated the effects of PLLA microspheres on epidermal stem cells (EpiSCs).

Methods

Different concentrations of PLLA microspheres on epidermal stem cells (EpiSCs) in vitro through culture, and identification of primary rat EpiSCs. CCK-8 detection, apoptosis staining, flow cytometry, Transwell assay, wound healing assay, q-PCR analysis, and immunofluorescence staining were used to detect the effects of PLLA on EpiSCs. Furthermore, we observed the effect on the epidermis by injecting PLLA into the dermis of the rat skin in vivo.

Results

PLLA microspheres promote cell proliferation and migration while delaying cell senescence and maintaining its stemness. In vitro, Intradermal injection of PLLA microspheres in the rat back skin resulted in delayed aging, as evidenced by histological and immunohistochemical staining of the skin at 2, 4, and 12 weeks of follow-up.

Conclusion

This study showed the positive effects of PLLA on rat epidermis and EpiSCs, while providing novel insights into the anti-aging mechanism of PLLA.

Employing hyaluronic acid-based mesotherapy for facial rejuvenation

BACKGROUND

Mesotherapy is a method of treatment in which biocompatible substances are injected in small aliquots into different levels of skin. This technique can be used for facial rejuvenation.

AIM

To comprehensively evaluate efficacy of different hyaluronic acid (HA) materials for skin rejuvenation, and discuss longevity of these products, potential adverse effects, and different injection techniques.

MATERIAL AND METHODS

We searched Pubmed, Scopus, Web of science, Google Scholar, Embase, Cochrane Library, and Science direct until April of 2022. Thirty-four articles were selected including 23 articles about non-cross-linked HA and 11 articles about cross-linked HA.

RESULTS

Eleven and five different non-cross-linked HA and cross-linked HA materials were utilized, respectively. Treatment sessions for non-cross-linked HA were between 1 and 6 at weekly-to-bimonthly interval, and for cross-linked HA were 1-3 at 4-36 weeks apart. In most of the studies, serial micropuncture technique with 23-32 gauge needles was used for injection. Other injection techniques were Nappage (picotage), depot and micro-linear.

CONCLUSION

Mesotherapy with HA-based fillers is a favorable method for restoring youthful appearance, rejuvenation, and revitalization of skin. Proper selection and precise placement of HA in desired level of dermis is an essential key to optimize improvement and minimize side effects including skin irregularities and Tyndall effect. Adjuvant therapy with additional rejuvenation procedures to enhance esthetic results is required especially in elderly individuals with severe photodamaged skin. Moreover, preservation of esthetic results requires maintenance therapy every few months.

Can 595-nm Pulsed Dye Laser in Conjunction With an Optical Clearing Agent Improve the Treatment of Port-Wine Stains?

BACKGROUND

Studies have demonstrated that glycerol can act as an optical clearing agent (OCA) to increase the light penetration through the skin and laser deposition to the target chromophore, thus potentially increasing the efficacy of laser treatment.

OBJECTIVE

To evaluate whether a pulsed dye laser (PDL) in combination with an OCA can increase the efficacy in treating port-wine stains (PWSs).

METHODS

Thirteen patients with untreated PWSs underwent 3 treatment sessions at 6-week intervals. Each PWS was divided into OCA + PDL sites (PDL treatment after topical use of 0.5 mL hydrous glycerol for 5 minutes), PDL sites, and untreated sites. The chromametric evaluation and visual evaluation (VAS) of the efficacy and the assessment of side effects were conducted 3 months after the final treatment.

RESULTS

Visual evaluation was 2.69 versus 2.07 (p = .025) and 3.38 versus 3.07 (p = .04) for OCA + PDL and PDL-only sites after the first and second sessions. After the third session, the chromameter and VAS indicated no significant difference between the 2 sites. Permanent side effects were not observed.

CONCLUSION

Greater efficacy was observed after the first 2 treatments on the OCA + PDL sites. Although after multiple sessions, the OCA + PDL treatment did not improve efficacy over just PDL alone.

An Update on Facial Skin Rejuvenation Effectiveness of Mesotherapy EBM V

ABSTRACT

Although it appears to be a simple, easy, and financially attractive therapeutic modality, skin rejuvenation mesotherapy is a controversial cosmetic procedure and proof of its efficacy is still lacking. The authors have published a review about this therapeutic modality more than a decade ago. Few clinical studies evaluating its efficacy and safety were available then without any conclusive scientific evidence about its efficacy; nevertheless, mesotherapy has continued to be performed at a relatively high financial cost to patients by many nonmedical and medical professionals for antiaging purposes. The authors have published a review about this therapeutic modality more than a decade ago. The current review is an update aimed at identifying any evidence about the scientific validity and efficacy of this approach that has emerged since then. No clinical valuable new data and new information has been identified. As by American Society of Plastic Surgeons (ASPS) policy statement updated and approved in 2019, mesotherapy for skin rejuvenation is currently not Food and Drug Administration approved. Until more conclusive data is available, skin rejuvenation mesotherapy cannot be recommended for routine skin rejuvenation clinical application.