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1.
J Cosmet Dermatol ; 23(5): 1620-1628, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38468421

RESUMEN

BACKGROUND: Skin's exposure to intrinsic and extrinsic factors causes age-related changes, leading to a lower amount of dermal collagen and elastin. AIM: This study investigated the effects of a novel facial muscle stimulation technology combined with radiofrequency (RF) heating on dermal collagen and elastin content for the treatment of facial wrinkles and skin laxity. METHODS: The active group subjects (N = 6) received four 20-min facial treatments with simultaneous RF and facial muscle stimulation, once weekly. The control subject (N = 1) was untreated. Skin biopsies obtained at baseline, 1-month and 3-month follow-up were evaluated histologically to determine collagen and elastin fibers content. A group of independent aestheticians evaluated facial skin appearance and wrinkle severity. Patient safety was followed. RESULTS: In the active group, collagen-occupied area reached 11.91 ± 1.80 × 106 µm2 (+25.32%, p < 0.05) and 12.35 ± 1.44 × 105 µm2 (+30.00%, p < 0.05) at 1-month and 3-month follow-up visits. Elastin-occupied area at 1-month and 3-month follow-up was 1.64 ± 0.14 × 105 µm2 (+67.23%, p < 0.05), and 1.99 ± 0.21 × 105 µm2 (+102.80%, p < 0.05). In the control group, there was no significant difference (p > 0.05) in collagen and elastin fibers. Active group wrinkle scores decreased from 5 (moderate, class II) to 3 (mild, class I). All subjects, except the control, improved in appearance posttreatment. No adverse events or side effects occurred. CONCLUSION: Decreased dermal collagen and elastin levels contributes to a gradual decline in skin elasticity, leading to facial wrinkles and unfirm skin. Study results showed noticeable improvement in facial appearance and increased dermal collagen and elastin content subsequent to simultaneous, noninvasive RF, and facial muscle stimulation treatments.


Asunto(s)
Colágeno , Elastina , Músculos Faciales , Envejecimiento de la Piel , Humanos , Elastina/análisis , Elastina/metabolismo , Envejecimiento de la Piel/efectos de la radiación , Colágeno/metabolismo , Colágeno/análisis , Femenino , Persona de Mediana Edad , Adulto , Músculos Faciales/efectos de la radiación , Terapia por Radiofrecuencia/métodos , Terapia por Radiofrecuencia/efectos adversos , Masculino , Terapia por Estimulación Eléctrica/efectos adversos , Terapia por Estimulación Eléctrica/instrumentación , Terapia por Estimulación Eléctrica/métodos , Técnicas Cosméticas/efectos adversos , Técnicas Cosméticas/instrumentación , Piel/efectos de la radiación , Piel/patología , Cara , Biopsia , Resultado del Tratamiento
2.
Dermatol Surg ; 47(6): 780-784, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33867466

RESUMEN

BACKGROUND: Most patients with scleroderma suffer from microstomia, which can have debilitating consequences on their quality of life. Unfortunately, treatment options remain limited. No specific guidelines exist; hence, microstomia remains a challenge to treat in this patient population. OBJECTIVE: This review aims to evaluate the different medical and surgical treatment modalities currently available for microstomia in patients with scleroderma and make recommendations for future research. MATERIALS AND METHODS: A search of PubMed, Ovid MEDLINE, and Ovid Embase was conducted to identify articles discussing the treatment of microstomia in scleroderma. Twenty articles discussing surgical therapy and one article discussing medical therapy were reviewed. RESULTS: Mostly because of a scarcity of high-level evidence, no individual therapy has documented long-term efficacy. Some treatments demonstrate positive results and warrant further research. CONCLUSION: Given the variability of results, specific recommendations for the treatment of microstomia in patients with scleroderma are difficult to establish. A multifaceted approach that includes surgical and medical therapy is likely the best option to improve oral aperture in this patient population. Surgical treatments such as neurotoxins, autologous fat grafting, and ultraviolet A1 phototherapy may hold the most potential for improvement.


Asunto(s)
Microstomía/terapia , Calidad de Vida , Esclerodermia Sistémica/complicaciones , Tejido Adiposo/trasplante , Músculos Faciales/efectos de los fármacos , Músculos Faciales/inervación , Músculos Faciales/efectos de la radiación , Músculos Faciales/cirugía , Humanos , Microstomía/etiología , Microstomía/psicología , Boca/efectos de los fármacos , Boca/efectos de la radiación , Boca/cirugía , Neurotoxinas/administración & dosificación , Esclerodermia Sistémica/terapia , Trasplante Autólogo , Resultado del Tratamiento , Terapia Ultravioleta/métodos
3.
Photobiomodul Photomed Laser Surg ; 38(8): 477-480, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32716761

RESUMEN

Background: Paralysis of the facial muscles produces functional and aesthetic disturbance that has a negative impact for the patient's quality of life. Objective: To evaluate the effects of a photobiomodulation (PBM) with low-level laser (LLL) on the treatment of a patient with 8 years of facial paralysis. Methods: PBM with two different wavelengths of LLL (660 and 808 nm), applied only on the affected side, three times a week for 8 consecutive weeks. Evaluations were performed before starting treatments, after the 12th session of treatment and after the 24th session, using the House-Brackmann scale and electroneuromyography. Results: The House-Brackmann and electroneuromyography tests showed improvements in the movement of the facial muscles when tested in the middle and at the end of the treatment with LLL. Conclusions: PBM with LLL at the wavelength of 660 and 808 nm with the parameters used in this case report was an effective and noninvasive treatment for facial paralysis in this long-standing, chronic case of 8 years.


Asunto(s)
Parálisis Facial/terapia , Terapia por Luz de Baja Intensidad/métodos , Adulto , Enfermedad Crónica , Electromiografía , Músculos Faciales/efectos de la radiación , Nervio Facial/efectos de la radiación , Parálisis Facial/diagnóstico , Femenino , Humanos , Movimiento , Factores de Tiempo
4.
Photomed Laser Surg ; 28 Suppl 1: S135-41, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20666575

RESUMEN

OBJECTIVE: The aim of the present study was to use Raman spectroscopy to measure levels of CaPi in muscles under occlusal wear and treated with laser phototherapy (LPT) or muscle-relaxant therapy or both on rodents. BACKGROUND: The etiology of temporomandibular disorders is multifactorial. Malocclusion may influence the masticatory muscles, causing fatigue. A major type of fatigue is the metabolic, caused by the increased accumulation of metabolites such as inorganic phosphate. Raman spectroscopy allows nondestructive analysis of the biochemical composition of tissues. METHODS: The 30 male Wistar rats were randomly divided into three groups: occlusal wear (G-1), occlusal wear + LPT (G-2), and occlusal wear + muscle relaxant (G-3). Ten untreated animals were used for baseline data. Under intraperitoneal general anesthesia, animals of groups 1, 2, and 3 had unilateral amputation of molar cusps to simulate an occlusal-wear situation. The masseter muscle of G-2 received LPT (lambda830 nm, 4 J/cm(2), 40 mW, phi approximately 2 mm) after the procedure and repeated every other day for 14-30 days. Animals of G-3 were treated with a daily injection of dantrolene (2.5 mg/kg in 0.5 ml of H(2)O) beginning 24 h after cusp removal. Animals were killed with an overdose of general anesthetics at days 14 and 30 after cusps removal, and the ipsilateral masseter muscle was excised and divided into two parts. One part was routinely processed and underwent histologic analysis; the other was kept in liquid nitrogen for Raman spectroscopy. The mean value of the intensity of the peak 958 per centimeter was determined. RESULTS: No morphologic changes were seen. Raman analysis showed significantly less Raman intensity in the laser group at 30 days (p < 0.01). CONCLUSION: Occlusal wear did not caused morphologic alterations in the masseter muscle but resulted in changes of the levels of CaP(i) that were less compromising when the laser light was used.


Asunto(s)
Dantroleno/farmacología , Músculos Faciales/efectos de los fármacos , Músculos Faciales/efectos de la radiación , Terapia por Luz de Baja Intensidad , Músculo Masetero/efectos de los fármacos , Músculo Masetero/efectos de la radiación , Relajantes Musculares Centrales/farmacología , Espectrometría Raman , Atrición Dental/terapia , Animales , Calcio/metabolismo , Modelos Animales de Enfermedad , Músculos Faciales/fisiopatología , Masculino , Músculo Masetero/fisiopatología , Ratas , Ratas Wistar , Atrición Dental/fisiopatología
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