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1.
Carbohydr Polym ; 341: 122298, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-38876710

RESUMO

Cutaneous melanoma is a lethal skin cancer variant with pronounced aggressiveness and metastatic potential. However, few targeted medications inhibit the progression of melanoma. Ganoderma lucidum, which is a type of mushroom, is widely used as a non-toxic alternative adjunct therapy for cancer patients. This study determines the effect of WSG, which is a water-soluble glucan that is derived from G. lucidum, on melanoma cells. The results show that WSG inhibits cell viability and the mobility of melanoma cells. WSG induces changes in the expression of epithelial-to-mesenchymal transition (EMT)-related markers. WSG also downregulates EMT-related transcription factors, Snail and Twist. Signal transduction assays show that WSG reduces the protein levels in transforming growth factor ß receptors (TGFßRs) and consequently inhibits the phosphorylation of intracellular signaling molecules, such as FAK, ERK1/2 and Smad2. An In vivo study shows that WSG suppresses melanoma growth in B16F10-bearing mice. To enhance transdermal drug delivery and prevent oxidation, two highly biocompatible compounds, polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP), are used to synthesize a dissolvable microneedle patch that is loaded with WSG (MN-WSG). A functional assay shows that MN-WSG has an effect that is comparable to that of WSG alone. These results show that WSG has significant potential as a therapeutic agent for melanoma treatment. MN-WSG may allow groundbreaking therapeutic approaches and offers a novel method for delivering this potent compound effectively.


Assuntos
Reishi , Fatores de Transcrição da Família Snail , Animais , Camundongos , Reishi/química , Fatores de Transcrição da Família Snail/metabolismo , Humanos , Melanoma/tratamento farmacológico , Melanoma/patologia , Melanoma/metabolismo , Linhagem Celular Tumoral , Proteína 1 Relacionada a Twist/metabolismo , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Camundongos Endogâmicos C57BL , Neoplasias Cutâneas/tratamento farmacológico , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/metabolismo , Melanoma Experimental/tratamento farmacológico , Melanoma Experimental/patologia , Melanoma Experimental/metabolismo , Movimento Celular/efeitos dos fármacos , Antineoplásicos/farmacologia , Antineoplásicos/química , Álcool de Polivinil/química , Polissacarídeos/farmacologia , Polissacarídeos/química , Transdução de Sinais/efeitos dos fármacos
2.
Curr Med Imaging ; 19(13): 1599-1603, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36790002

RESUMO

BACKGROUND: Sarcoidosis is a systemic non-caseous necrotizing granulomatous disease with unknown etiology. It can involve multiple organs throughout the body, most commonly affecting lungs and/or bilateral hilar lymph nodes. Sjögren's syndrome is a multi-system autoimmune disease. The main clinical symptoms include dry mouth and dry eyes. The combination of the two diseases with the involvement of multiple systems is very rare, and the final diagnosis is mainly based on the comprehensive judgment of clinical history, imaging manifestations and pathological examination. CASE PRESENTATION: We report a case of multiple sarcoidosis (lung, hilar, mediastinal, inguinal, liver, and spleen) with Sjögren syndrome. The patient had a dry mouth, dry eyes, and bilateral parotid gland enlargement. The first computed tomography (CT) scan of the chest and abdomen showed multiple nodules in the lungs, multiple enlarged lymph nodes, and low-density shadows in the liver and spleen. After a one-year interval, the re-examination showed that the lung lesions increased with bead-like changes, and the lymph nodes shrunk. Through pathological puncture and comprehensive judgment, considering the coexistence of the two diseases, the patient improved after hormone therapy and was finally diagnosed. CONCLUSION: Multisystem sarcoidosis combined with Sjögren's syndrome has rarely been reported in the literature. This case has multiple imaging examinations, pathological data and a follow-up review after treatment. The dynamic changes in different periods will help us to better understand the situation of sarcoidosis and explore the connection between the two diseases so as to reduce misdiagnosis.


Assuntos
Sarcoidose , Síndrome de Sjogren , Humanos , Síndrome de Sjogren/complicações , Síndrome de Sjogren/diagnóstico por imagem , Sarcoidose/complicações , Sarcoidose/diagnóstico por imagem , Pulmão/diagnóstico por imagem , Fígado , Tomografia Computadorizada por Raios X
3.
Front Psychol ; 6: 1931, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26793130

RESUMO

The present study aims to replicate and extend Rule and Ambady (2010a)'s findings that Republicans and Democrats could be differentiated by face. In Experiment 1, undergraduates categorized 50 gray-scale full-face photos of candidates of the two major political parties in Taiwan, the Kuomingtang (KMT) and the Democratic Progressive Party (DPP). Using identical stimuli and procedure, Experiment 2 tested 25- to 57-year-olds. Experiment 3 tested undergraduates with cropped photos, Experiment 4, with photos devoid of the mouth and chin area. At the end of each Experiment, we interviewed the participants about the strategies used. Results showed that undergraduates could categorize KMT and DPP with accuracies significantly higher than chance in full-face photos (Experiment 1), M = 0.524, p = 0.045, cropped photos (Experiment 3), M = 0.534, p = 0.016, and photos devoid of the mouth-and-chin area (Experiment 4), M = 0.530, p = 0.048. Adults aged between 25 and 57 could also categorize full-face photos (Experiment 2), M = 0.557, p < 0.001. Analysis on strategy use revealed that the better-than-chance performance may be a unique contribution of those who reported making face-to-trait inferences. In sum, we replicated Rule and Ambady's (2010a) results in East Asian and found that face-to-trait inferences may be essential.

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