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1.
Skin Res Technol ; 30(4): e13679, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38616503

RESUMEN

BACKGROUND: Injectable filler, a nonsurgical beauty method, has gained popularity in rejuvenating sagging skin. In this study, polydioxanone (PDO) was utilized as the main component of the ULTRACOL200 filler that helps stimulate collagenesis and provide skin radiant effects. The study aimed to evaluate and compare the effectiveness of ULTRACOL200 with other commercialized products in visually improving dermatological problems. METHODS: Herein, 31 participants aged between 20 and 59 years were enrolled in the study. 1 mL of the testing product, as well as the quantity for the compared groups was injected into each participants face side individually. Subsequently, skin texture and sunken volume of skin were measured using ANTERA 3D CS imaging technology at three periods: before the application, 4 weeks after the initial application, and 4 weeks after the 2nd application of ULTRACOL200. RESULTS: The final results of skin texture and wrinkle volume evaluation consistently demonstrated significant enhancement. Consequently, subjective questionnaires were provided to the participants to evaluate the efficacy of the testing product, illustrating satisfactory responses after the twice applications. CONCLUSION: The investigation has contributed substantially to the comprehension of a PDO-based filler (ULTRACOL200) for skin enhancement and provided profound insight for future clinical trials.


Asunto(s)
Surco Nasolabial , Trasplante de Piel , Humanos , Adulto Joven , Adulto , Persona de Mediana Edad , Piel/diagnóstico por imagen , Imagenología Tridimensional , Tecnología
3.
In Vivo ; 37(3): 1093-1102, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37103107

RESUMEN

BACKGROUND/AIM: This research investigated the biophysical properties, safety, and efficacy of polydioxanone (PDO) filler compared to poly-L-lactic acid (PLLA), polycaprolactone (PCL), and hyaluronic acid (HA) fillers. In both mouse and human skin models, a novel collagen stimulation was compared with hyaluronic acid filler. MATERIALS AND METHODS: An electron microscope was used to capture images of the solid particle microsphere shape. Moreover, animal models named SKH1-Hrhr were used to assess the 12-week persistence of PDO, PLLA, or PCL filler. H&E and Sirus Red staining were used to compare collagen density. Five participants in the clinical trial received three injections in the dermis over an eight-month period. Skin density, wrinkles, and gloss were evaluated using DUB® skin scanner, Antera 3D CS, Mark-Vu, and Skin gloss meter after injection to assess the efficacy of fillers. RESULTS: PDO microspheres had uneven surfaces and were spherical and consistent in size. In comparison to other fillers, the PDO filler demonstrated complete biodegradability in just 12 weeks and better neocollagenesis, and a lower inflammatory response than the HA filler. After three injections, the human body assay showed a significant improvement in skin gloss, wrinkles, and density. CONCLUSION: In comparison to PCL and PLLA, PDO filler demonstrated a comparable volume increase rate and better biodegradability. Furthermore, although its physical characteristics are similar to those of a solid, PDO has the advantage of being more organically spread. In photoaging mice, PDO fillers are thought to offer equivalent or superior anti-wrinkle and anti-aging effects to PBS, PCL, and PLLA.


Asunto(s)
Rellenos Dérmicos , Humanos , Ratones , Animales , Rellenos Dérmicos/efectos adversos , Ácido Hialurónico , Piel , Modelos Animales de Enfermedad , Colágeno
4.
Ann Dermatol ; 34(1): 59-62, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35221597

RESUMEN

Ichthyosis follicularis, atrichia, and photophobia (IFAP) syndrome is a rare genetic disorder caused by mutations in the MBTPS2 gene. It is characterized by ichthyosis and alopecia from birth. Photophobia may be present in infancy or early childhood. Its mode of inheritance is X-linked recessive; thus, it mostly affects male. The disease severity varies, ranging from mild cases limited to the skin to the severe variant involving multiple extracutaneous features. A 7-year-old boy presented with scanty hair on scalp and eyebrows at birth. On physical examination, scaly patches were observed on the whole body and spiky follicular hyperkeratotic papules were observed on the face and trunk. He also suffered from severe photophobia. Histopathological examination of the scalp showed miniaturized hair follicles without perifollicular fibrosis. Genetic analysis revealed a novel mutation in the MBTPS2 gene which was a homozygous missense mutation of c.245T>C leading to an amino-acid substitution from phenylalanine to serine (p.Phe82Ser). We diagnosed this patient with IFAP syndrome. To date, 25 pathogenic MBTPS2 gene mutations have been identified. To our knowledge, c.245T>C is a novel homozygous missense mutation in the MBTPS2 gene, which has not been reported in Human Gene Mutation Database, ClinVar Database, and Leiden Open Variation Database. Previous reports suggested genotype-phenotype correlations in the MBTPS2 gene mutations. Supported by a previous notion that genotype correlates with phenotype, this novel mutation can be a predictive factor for the mild form of IFAP syndrome, restricted to the classic symptom triad.

5.
Ann Dermatol ; 33(2): 182-185, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33935461

RESUMEN

Erosive adenomatosis of the nipple (EAN), also known as nipple adenoma, florid papillomatosis, or papillary adenoma of the nipple, is a benign neoplasm originating from a lactiferous duct of the breast. Although the potential for malignant change is invariably negligible, the nature of the disease is quite intractable despite several treatment methods. Surgical excision is known as the treatment of choice, but this invasive approach is generally not acceptable to the vast majority of patients due to the cosmetic outcomes. Cryosurgery could be an alternative choice to preserve the structure of the nipple-areola complex, though its application has not been studied due to the paucity of cases. A 22-year-old female presented with a unilateral, crater-like erosion of the left nipple with serosanguineous discharge. The skin biopsy revealed proliferation of tubular structures, which corresponded to EAN. She was treated with 4 sessions of cryosurgery (open cryospray with liquid nitrogen) over 6 months, and the skin lesion resolved completely without any recurrence for 12 months. Although further study is required to determine the optimal treatment regimen for EAN, cryosurgery should be considered as an effective option to surgical excision.

6.
J Dermatol ; 46(9): 777-781, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31342527

RESUMEN

Segmental nevus depigmentosus and segmental vitiligo can be difficult to differentiate from each other. Differential diagnosis of these two diseases is important because they have significantly different prognoses and psychological effects. The purpose of this study is to identify clinical clues that may be helpful in differentiating these two diseases. We enrolled 63 patients with segmental nevus depigmentosus and 149 patients with segmental vitiligo. Sex, age of onset, sites involved, dermatomal distribution, margin of lesion and presence of poliosis were evaluated in both groups. The age of onset was less than 10 years in 96.8% of segmental nevus depigmentosus and 28.9% of segmental vitiligo cases. Trunk (36.5%) and cervical (38.1%) dermatomes were the most commonly involved in segmental nevus depigmentosus and face (67.1%) and trigeminal (64.4%) dermatomes in segmental vitiligo. The average number of dermatomes involved in truncal lesions was different in segmental nevus depigmentosus and segmental vitiligo (2.71 vs 1.62, P = 0.001). Segmental vitiligo on the face, neck and trunk appeared closer to the axis than segmental nevus depigmentosus (P < 0.001). Segmental nevus depigmentosus and segmental vitiligo showed significantly different margins (90.5% and 41.6% serrated, respectively; P < 0.001). We observed clinical differences between patients with segmental nevus depigmentosus and those with segmental vitiligo. Distribution (site, distance to axis, dermatome), vertical width, margin of lesion and presence of poliosis can be helpful in differentiating segmental nevus depigmentosus and segmental vitiligo.


Asunto(s)
Nevo/diagnóstico , Neoplasias Cutáneas/diagnóstico , Vitíligo/diagnóstico , Adolescente , Adulto , Edad de Inicio , Niño , Preescolar , Diagnóstico Diferencial , Cara , Femenino , Humanos , Lactante , Masculino , Cuello , Fotograbar , Estudios Retrospectivos , Piel/diagnóstico por imagen , Torso , Adulto Joven
8.
J Am Acad Dermatol ; 80(5): 1322-1331, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-29559399

RESUMEN

BACKGROUND: Evidence suggests that psoriasis might be associated with metabolic syndrome and an increased risk for cardiovascular disease. OBJECTIVE: To determine whether ustekinumab reduces systemic and vascular inflammation associated with metabolic syndrome and cardiovascular disease, measured using 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET/CT). METHODS: Patients with psoriasis and healthy controls underwent baseline 18F-FDG PET/CT imaging. Patients with moderate-to-severe psoriasis were treated with ustekinumab and underwent 18F-FDG PET/CT again after a Psoriasis Area and Severity Index of 75 was achieved. RESULTS: After a Psoriasis Area and Severity Index of 75 was achieved with ustekinumab treatment, standardized uptake values were reduced in the liver, spleen, and 5 parts of the aorta (P < .05). LIMITATIONS: Our study does not provide outcome data concerning cardiovascular events or metabolic syndrome; it only shows surrogate markers in a limited (Korean) population. CONCLUSION: Ustekinumab treatment was significantly associated with decreased systemic and vascular inflammation related to metabolic syndrome and cardiovascular disease among patients with psoriasis.


Asunto(s)
Fármacos Dermatológicos/uso terapéutico , Inflamación/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones , Psoriasis/diagnóstico por imagen , Ustekinumab/uso terapéutico , Vasculitis/diagnóstico por imagen , Adolescente , Adulto , Anciano , Aorta/diagnóstico por imagen , Estudios de Casos y Controles , Estudios de Factibilidad , Femenino , Fluorodesoxiglucosa F18 , Humanos , Inflamación/complicaciones , Inflamación/tratamiento farmacológico , Hígado/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Psoriasis/complicaciones , Radiofármacos , Índice de Severidad de la Enfermedad , Bazo/diagnóstico por imagen , Vasculitis/complicaciones , Vasculitis/tratamiento farmacológico , Adulto Joven
14.
Ann Dermatol ; 27(4): 446-9, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26273164

RESUMEN

Erythrodermic psoriasis (EP) is a very severe variant of psoriasis whose management poses a challenge to physicians, as currently available therapies often provide unsatisfactory results. Many biologics have been used to treat chronic plaque psoriasis, the most common form of psoriasis; however, their effectiveness for EP is poorly understood. A recently developed biologic, golimumab, has been extensively studied for the treatment of moderate-to-severe active rheumatoid arthritis, psoriatic arthritis, active ankylosing spondylitis, and chronic plaque psoriasis. However, no clinical trials have been performed for EP. Here, we report the case of a 32-year-old man who presented with severe psoriasis that previously failed to respond satisfactorily to methotrexate, cyclosporine, retinoid, narrow-band ultraviolet B phototherapy, and topical agents (i.e., steroids and calcipotriol). Skin lesions worsened progressively and developed into erythroderma. Psoriatic arthritis was also detected. Conventional therapies lacked efficacy. Therefore, we administered golimumab 50 mg. The skin lesions improved significantly according to the Psoriasis Area and Severity Index score after the first administration; lesions improved further throughout the treatment course. Although additional studies are required to fully evaluate the efficacy and safety of golimumab, this agent may be an alternative treatment strategy for some patients with recalcitrant EP.

15.
J Dermatol ; 42(4): 373-7, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25571765

RESUMEN

Sometimes the clinical differentiation between verruca plana (VP) and VP-like seborrheic keratosis (SK) could be challenged. However, there have been no studies on this issue to date. The aim of this study was to elucidate clinical and dermoscopic differences between these two diseases, and also to suggest a diagnostic algorithm of VP and VP-like SK without skin biopsy. The patients who had lesions clinically considered as VP or VP-like SK were the target of our study. We took clinical and dermoscopic photos with informed consent and conducted a questionnaire. All patients had their diagnoses confirmed by biopsy. Thirty-three patients were enrolled in our study. Seventeen patients were finally diagnosed with VP (51.5%) and 16 patients with VP-like SK (48.5%). In clinical findings, VP-like SK showed significantly more scattered distribution than VP (P = 0.039), which exhibited more clustered or grouped distribution (P = 0.039). In dermoscopic findings, brain-like appearance was more commonly observed in VP-like SK (P = 0.003) whereas VP showed more red dots or globular vessels (P = 0.017) and even-colored light brown to yellow patch (P < 0.001). Sex, onset age, the size of each lesion, location, color and shape showed no significant differences between them (P > 0.05). Based on our results, we suggest a diagnostic algorithm using Koebner's phenomenon, dermoscopic findings, distribution of each lesion and biopsy for multiple VP-like lesions in adults, and we think it will be a very useful diagnostic tool in daily clinical dermatological practice.


Asunto(s)
Queratosis Seborreica/diagnóstico , Verrugas/diagnóstico , Adulto , Anciano , Algoritmos , Biopsia , Dermoscopía , Diagnóstico por Computador , Diagnóstico Diferencial , Femenino , Humanos , Queratosis Seborreica/diagnóstico por imagen , Queratosis Seborreica/patología , Masculino , Persona de Mediana Edad , Verrugas/diagnóstico por imagen , Verrugas/patología
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