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1.
J Drugs Dermatol ; 18(3): 290-295, 2019 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-30909351

RESUMEN

Background: Topical skin care products use various technologies to promote skin repair. Growth factors of human, animal, and plant-derived origins have clinically demonstrated the ability to repair skin by promoting collagen, elastin, and glycosaminoglycan (GAG) production to reconstruct and reinforce skin's extracellular matrix (ECM). Human skin cells respond to instructions from highly specialized proteins or hormones referred to as growth factors. These growth factors initiate cellular communication that instigates cellular replication, production, or proliferation. The production of elastin and collagen dermal connective fibers slows, and, with age, the regenerative rates of GAGs become delayed. These biological issues can be exacerbated by extrinsic factors such as sun exposure, pollutants, and various other factors. Growth factor-based products have become important topical treatment modalities for addressing signs of skin aging such as fine lines, deep wrinkles, dryness, laxity, and textural irregularities. Objective: The aim of a 12-week clinical trial of a growth factor composition was to assess its effectiveness at restoring skin health through dermal and epidermal restructuring of aged skin. Results: Data from expert grading, and from corneometer and cutometer evaluations, as well as 2D and 3D image analysis, reflected significant improvements in facial skin appearance, firmness, elasticity, and hydration. Elements that improved most dramatically in investigators' assessments included radiance, firmness, tactile elasticity, textural smoothness, overall appearance, and crow's feet. Ultrasound imaging showed continual increases in dermal and epidermal restructuring throughout the study duration. Subject assessments reflected positive product tolerability and positive perception across a broad range of efficacy attributes through 12 weeks of usage. Conclusion: The results verified the ability of a multi-modal plant and enzymatically derived growth factor-based product to achieve skin rejuvenation improvements by stimulating dermal ECM and fibrous tissue regeneration to reduce fine lines and coarse wrinkles, and improve skin firmness and elasticity, while restoring skin to a properly hydrated state. J Drugs Dermatol. 2019;18(3):290-295.


Asunto(s)
Cosmecéuticos/administración & dosificación , Péptidos y Proteínas de Señalización Intercelular/administración & dosificación , Rejuvenecimiento , Envejecimiento de la Piel/efectos de los fármacos , Administración Cutánea , Adulto , Anciano , Dermis/diagnóstico por imagen , Dermis/efectos de los fármacos , Epidermis/diagnóstico por imagen , Epidermis/efectos de los fármacos , Matriz Extracelular/efectos de los fármacos , Cara , Humanos , Imagenología Tridimensional , Persona de Mediana Edad , Resultado del Tratamiento
2.
Am J Dermatopathol ; 38(12): e163-e166, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27861183

RESUMEN

Cutaneous discoloration secondary to dermal deposition of titanium dioxide (TiO2) particles is recognized but seldom reported in the literature. In this report, the authors describe the case of a 61-year-old gentleman, with a long history of alopecia areata, who presented with numerous, discrete dark blue macules on the scalp. Scanning electron microscopy with energy dispersive x-ray spectroscopy analysis ultimately identified the macules as deposits of TiO2. The patient had a history of intralesional triamcinolone injections for management of alopecia areata. A sample of generic 0.1% triamcinolone acetonide paste was analyzed and found to contain many TiO2 particles analogous to those seen in the patient's biopsy sample. To the authors' knowledge, this is the first reported case of TiO2 deposition in the dermis likely resulting from topical combined with intralesional triamcinolone injection.


Asunto(s)
Alopecia Areata/tratamiento farmacológico , Glucocorticoides/administración & dosificación , Glucocorticoides/química , Cuero Cabelludo/química , Piel/química , Titanio/análisis , Triamcinolona Acetonida/administración & dosificación , Triamcinolona Acetonida/química , Administración Cutánea , Biopsia , Composición de Medicamentos , Humanos , Inyecciones Intralesiones , Microscopía Electrónica de Rastreo , Persona de Mediana Edad , Cuero Cabelludo/ultraestructura , Piel/ultraestructura , Espectrometría por Rayos X
3.
J Am Acad Dermatol ; 72(2): 286-92, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25476993

RESUMEN

BACKGROUND: Standard-dose (36-Gy) total skin electron beam therapy (TSEBT) is a highly effective treatment in mycosis fungoides. However, the regimen is time-intensive and may be associated with significant toxicity. OBJECTIVE: We sought to evaluate the efficacy and tolerability associated with low-dose (12-Gy) TSEBT. METHODS: Data from 3 clinical trials using low-dose (12-Gy) TSEBT were pooled. In all trials, TSEBT-naïve patients with stage IB to IIIA mycosis fungoides were treated with TSEBT (12 Gy, 1 Gy per fraction over 3 weeks). The primary end point was clinical response rate. Secondary end points included time to response and duration of clinical benefit. RESULTS: In all, 33 patients enrolled. Eighteen were male; stages were 22 IB, 2 IIA, 7 IIB, and 2 IIIA. Overall response rate was 88% (29/33), including 9 patients with complete response. Median time to response was 7.6 weeks (3-12.4 weeks). Median duration of clinical benefit was 70.7 weeks (95% confidence interval 41.8-133.8 weeks). Toxicities from TSEBT were mild and reversible. LIMITATIONS: Conclusions are limited because of the small number of patients. CONCLUSIONS: Low-dose TSEBT provides reliable and rapid reduction of disease burden in patients with mycosis fungoides, which could be administered safely multiple times during the course of a patient's disease with acceptable toxicity profile.


Asunto(s)
Micosis Fungoide/radioterapia , Neoplasias Cutáneas/radioterapia , Irradiación Corporal Total , Adulto , Anciano , Anciano de 80 o más Años , Ensayos Clínicos Fase II como Asunto , Costo de Enfermedad , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Micosis Fungoide/patología , Estadificación de Neoplasias , Radiodermatitis/etiología , Dosificación Radioterapéutica , Ensayos Clínicos Controlados Aleatorios como Asunto , Inducción de Remisión , Estudios Retrospectivos , Neoplasias Cutáneas/patología , Resultado del Tratamiento , Irradiación Corporal Total/efectos adversos
5.
Am J Clin Dermatol ; 18(1): 87-96, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28004257

RESUMEN

The proportion of men receiving non-surgical cosmetic procedures has risen substantially in recent years. Various physiologic, anatomic, and motivational considerations differentiate the treatments for male and female patients. Nevertheless, research regarding approaches to the male cosmetic patient is scarce. We sought to provide an overview and sex-specific discussion of the most popular cosmetic dermatologic procedures pursued by men by conducting a comprehensive literature review pertaining to non-surgical cosmetic procedures in male patients. The most common and rapidly expanding non-surgical interventions in men include botulinum toxin, filler injection, chemical peels, microdermabrasion, laser resurfacing, laser hair removal, hair transplantation, and minimally invasive techniques for adipose tissue reduction. Important sex-specific factors associated with each of these procedures should be considered to best serve the male cosmetic patient.


Asunto(s)
Técnicas Cosméticas , Procedimientos Quirúrgicos Dermatologicos/métodos , Dermatología/métodos , Femenino , Humanos , Masculino , Factores Sexuales , Envejecimiento de la Piel
8.
Am J Surg Pathol ; 37(4): 617-23, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23480896

RESUMEN

Intravascular large T-cell or NK-cell lymphomas rarely present with cutaneous involvement. Intravascular cytotoxic T or NK lymphomas presenting in the skin (cIT/NKL) are often EBV, and reported cases follow a highly aggressive clinical course. Intravascular anaplastic large cell lymphoma (ALCL) by contrast is extraordinarily rare and, when it presents in the skin, raises the question of aggressive clinical behavior in the manner of cIT/NKL versus indolent clinical behavior in the manner of primary cutaneous ALCL. Here we describe a case of localized cutaneous intravascular anaplastic lymphoma kinase-negative ALCL (cIALCL) with a very indolent clinical course. The patient experienced a single cutaneous relapse and remains alive without disease 4 years after diagnosis. Review of the literature reveals multiple clinicopathologic differences between cIALCL and cIT/NKL: distribution (cIALCL, single skin region, P=0.021, Fisher exact test); histology (cIALCL, cohesive with necrosis, P=0.005); immunophenotype (cIALCL, strongly CD30, P=0.021; cIT/NKL, CD56 and/or EBV, P=0.003); and indolent clinical behavior with a trend toward better overall survival (P=0.067, Kaplan-Meier survival analysis). Our index case of cIALCL and 1 other tested case were immunohistochemically confirmed to be intralymphatic (contained within D2-40+vessels) as compared with the blood vessel localization of cIT/NKL. Recognition of cIALCLs as a distinct clinicopathologic entity, and in particular their distinction from aggressive, usually EBV cIT/NKLs, may be possible on the basis of a combination of clinicopathologic criteria, allowing for localized therapy in a subset of patients.


Asunto(s)
Linfoma Anaplásico de Células Grandes/diagnóstico , Proteínas Tirosina Quinasas Receptoras/metabolismo , Neoplasias Cutáneas/patología , Neoplasias Vasculares/diagnóstico , Anciano de 80 o más Años , Quinasa de Linfoma Anaplásico , Antineoplásicos/uso terapéutico , Biomarcadores de Tumor/metabolismo , Terapia Combinada , Humanos , Inmunofenotipificación , Linfoma Anaplásico de Células Grandes/enzimología , Linfoma Anaplásico de Células Grandes/terapia , Masculino , Inducción de Remisión , Neoplasias Cutáneas/enzimología , Neoplasias Cutáneas/terapia , Neoplasias Vasculares/metabolismo , Neoplasias Vasculares/terapia
9.
Am J Cardiol ; 107(10): 1415-20, 2011 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-21420054

RESUMEN

Although current literature demonstrates metabolic abnormalities are associated with mortality, obese patients who tend to have more metabolic abnormalities paradoxically have lower overall mortality rates compared to their normal-weight counterparts. In this study, we examined the prevalence of metabolic abnormality clustering and its relation to mortality in obese and normal-weight patients after percutaneous coronary intervention (PCI). Patients (n = 9,673) undergoing elective PCI from October 2003 through December 2006 at a single urban hospital were categorized by body mass index (BMI) levels of 18.5 to 24.9, 25.0 to 29.9, 30.0 to 34.9, and ≥35 kg/m(2) and by number of metabolic abnormalities possessed (hypertension, impaired fasting glucose/diabetes, triglycerides ≥150 mg/dl, high-density lipoprotein cholesterol < 40 mg/dl, and C-reactive protein ≥2.0 mg/L). All-cause mortality was assessed through June 30, 2007. Mean age of patients was 65.9 years and 66% were men. Prevalences of 4 or 5 metabolic abnormalities were 12%, 18%, 24%, and 31% in patients with BMI levels of 18.5 to 24.9, 25.0 to 29.9, 30 to 34.9, and ≥35 kg/m(2), respectively. In patients with BMI of 30.0 to 34.9 kg/m(2), hazard ratios (95% confidence intervals) for mortality associated with 2, 3, and 4 to 5 metabolic abnormalities versus 0 to 1 metabolic abnormality were 1.31 (0.79 to 2.17), 1.42 (0.83 to 2.43), and 2.39 (1.24 to 4.59), respectively. Analogous hazard ratios for patients with BMI ≥35 kg/m(2) were 1.94 (0.90 to 4.20), 1.44 (0.63 to 3.28), and 2.17 (0.91 to 5.18). All-cause mortality rates per 1,000 person-years were 55.5, 33.7, 28.3, and 33.8 in patients with BMI levels of 18.5 to 24.9, 25 to 29.9, 30 to 34.9, and ≥35 kg/m(2), respectively. In conclusion, BMI levels of 25.0 to 29.9 and 30 to 34.9 kg/m(2) were associated with lower all-cause mortality after PCI. However, an increased number of metabolic abnormalities translated into increased all-cause mortality.


Asunto(s)
Angioplastia Coronaria con Balón , Obesidad/metabolismo , Obesidad/mortalidad , Anciano , Glucemia/análisis , Índice de Masa Corporal , Proteína C-Reactiva/análisis , HDL-Colesterol/sangre , Análisis por Conglomerados , Femenino , Humanos , Hipertensión/complicaciones , Masculino , Obesidad/complicaciones , Triglicéridos/sangre
10.
Plast Reconstr Surg ; 125(1): 1e-7e, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19910860

RESUMEN

Increasing numbers of plastic surgery procedures are performed in diverse environments, including traditional hospital operating rooms, outpatient surgery centers, and private offices. Just as plastic surgeons develop areas of specialization to better care for their patients, anesthesiologists have specialized in outpatient plastic surgery, both cosmetic and reconstructive. The methods they utilize are similar to those for other procedures but incorporate specific techniques that aim to better relieve preoperative anxiety, induce and awaken patients more smoothly, and minimize postoperative sequelae of anesthesia such as nausea and vomiting. It is important for plastic surgeons to understand these techniques since they are the ones who are ultimately responsible for their patients' care and are frequently called on to employ anesthesiologists for their practices, surgery centers, and hospitals. The following is a review of the specific considerations that should be given to ambulatory plastic surgery patients and the techniques used to safely administer agreeable and effective anesthesia.


Asunto(s)
Procedimientos de Cirugía Plástica , Atención Ambulatoria , Anestesia General , Procedimientos Quirúrgicos Electivos , Humanos , Cuidados Intraoperatorios , Cuidados Posoperatorios , Cuidados Preoperatorios
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