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1.
Dermatol Ther ; 34(2): e14738, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33403743

RESUMO

Surgical methods are favorably used for treatment of stable vitiligo, and platelet-rich plasma (PRP) can be added to augment the effect. The additive value of PRP, however, remains elusive. Basic fibroblast growth factor (bFGF) is released from activated platelets with a capacity for stimulating melanocyte proliferation and migration. The treatment outcomes for the mini-punch grafting (MPG)/phototherapy treatment with and without PRP were assessed and the relation between bFGF and the obtained results were evaluated. Thirty-four vitiliginous patches, two per each patient with stable vitiligo, were enrolled in this intrapatient-controlled study and treated with autologous MPG and subsequent exposure to phototherapy with and without enhancement via PRP procedure at the time of the procedure, and monthly for the subsequent 3 months. Re-pigmentation assessment via vitiligo scores as well as measurement of lesional bFGF were done. PRP assistance to MPG/phototherapy treatment resulted in earlier re-pigmentation at week 8. However, this enhancement effect vanished at the study end (week 20) as ideal re-pigmentation (>75% re-pigmentation) was encountered in 10 patches (58.8%) treated with MPG/phototherapy modality, and in 12 patches (70.6%) treated with PRP-assisted method without significant difference between them. Lesional bFGF increased after both treatments with a higher expression with PRP assistance but without clinical reflection on the final outcome. PRP can speed the re-pigmentation response for MPG/phototherapy procedure without any significant effect on the final outcome.


Assuntos
Plasma Rico em Plaquetas , Vitiligo , Fator 2 de Crescimento de Fibroblastos , Humanos , Transplante de Pele , Resultado do Tratamento , Vitiligo/cirurgia , Vitiligo/terapia
2.
Int J Mol Sci ; 20(5)2019 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-30866411

RESUMO

Cutaneous T-cell lymphoma (CTCL) may develop a highly malignant phenotype in its late phase, and patients may profit from innovative therapies. The plant extract indirubin and its chemical derivatives represent new and promising antitumor strategies. This first report on the effects of an indirubin derivative in CTCL cells shows a strong decrease of cell proliferation and cell viability as well as an induction of apoptosis, suggesting indirubin derivatives for therapy of CTCL. As concerning the mode of activity, the indirubin derivative DKP-071 activated the extrinsic apoptosis cascade via caspase-8 and caspase-3 through downregulation of the caspase antagonistic proteins c-FLIP and XIAP. Importantly, a strong increase of reactive oxygen species (ROS) was observed as an immediate early effect in response to DKP-071 treatment. The use of antioxidative pre-treatment proved the decisive role of ROS, which turned out upstream of all other proapoptotic effects monitored. Thus, reactive oxygen species appear as a highly active proapoptotic pathway in CTCL, which may be promising for therapeutic intervention. This pathway can be efficiently activated by an indirubin derivative.


Assuntos
Linfoma Cutâneo de Células T/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Neoplasias Cutâneas/metabolismo , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Ensaios de Seleção de Medicamentos Antitumorais , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Humanos , Indóis/farmacologia , Linfoma Cutâneo de Células T/tratamento farmacológico , Neoplasias Cutâneas/tratamento farmacológico
3.
J Dermatolog Treat ; 33(2): 1126-1129, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32643454

RESUMO

BACKGROUND: Intradermal minoxidil is used as an off-label treatment for patchy non-severe alopecia areata (AA) either alone or in combination with steroids; however, studies estimating its efficacy are still lacking. OBJECTIVES: To assess the efficacy of intradermal delivery of minoxidil 5% alone and in combination with intralesional triamcinolone acetonide for treatment of patchy non-severe AA. PATIENTS AND METHODS: One hundred patches in twenty patients with patchy non-severe AA, five patches for each patient, were included in this prospective intra-patient comparative controlled clinical study. Four comparative patches per each patient were randomly assigned to receive 4 sessions, at a 4-week interval, of one of the following treatments: intralesional triamcinolone acetonide, intralesional minoxidil 5%, combination treatment, or micro-needling. The fifth patch was observed as the negative control. Treatment outcomes were assessed at baseline, and 1 month after treatment ends. RESULTS: Minoxidil intradermal injection was nearly comparable to the micro-needling effect and its combination to steroids had no additive effect. Hair regrowth in response to minoxidil occurred earlier than the spontaneous recovery. CONCLUSION: Monotherapy of intralesional minoxidil is of limited efficacy in treating non-severe patchy AA, but it speeds the recovery.


Assuntos
Alopecia em Áreas , Minoxidil , Alopecia/tratamento farmacológico , Alopecia em Áreas/tratamento farmacológico , Humanos , Injeções Intradérmicas , Minoxidil/uso terapêutico , Estudos Prospectivos , Triancinolona Acetonida/uso terapêutico
4.
J Dermatolog Treat ; 33(1): 542-549, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32419540

RESUMO

BACKGROUND: Device-based therapies have been used for onychomycosis patients with intolerance to systemic treatments. Photodynamic therapy (PDT) improves onychomycosis, while fractional carbon dioxide (FrCO2) augments the topical drug delivery. Comparative studies between PDT alone and laser-assisted one are lacking. OBJECTIVE: We aimed to evaluate the efficacy of PDT alone versus FrCO2-assisted PDT for treatment of onychomycosis. METHODS: Twenty-one patients with bilateral onychomycosis of toenails with nearly the same degree of affection were enrolled in this prospective intra-patient-controlled study. The right affected toenail was treated via PDT alone. The left toenail was treated via a FrCO2 followed immediately by PDT. The sessions were bimonthly for a total of six sessions. Direct microscopy, fungal cultures, clinical evaluation, onychomycosis severity index scoring, and patient's satisfaction were assessed before and 12 weeks after the last session. RESULTS: Both treatments reduced significantly the onychomycosis severity index (p < .05) without significant difference between them. The improvement in nail appearance and patient's satisfaction were higher in laser-assisted PDT than PDT alone (p < .05). CONCLUSION: Both treatments effectively reduced the severity of onychomycosis with a high degree of safety and tolerability. Fractional CO2-assisted PDT enhanced the clinical outcome via improving the nail appearance and patient's satisfaction.Key messagePhotodynamic therapy has a good success rate in clearing onychomycosis. Addition of fractional CO2 to photodynamic therapy improves the nail appearance and induces better satisfaction to treatment.


Assuntos
Onicomicose , Fotoquimioterapia , Antifúngicos/uso terapêutico , Dióxido de Carbono , Humanos , Unhas , Onicomicose/tratamento farmacológico , Satisfação do Paciente , Satisfação Pessoal , Estudos Prospectivos , Resultado do Tratamento
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