Meio ambiente e saúde humana: variabilidade temporal da radiação ultravioleta e epidemiológica do câncer de pele na região oeste do Estado de São Paulo

Pós-graduação em Geografia - FCT

Associação do filtro orgânico butil metoxi dibenzoil metano com o sistema óxido de zinco: óxido de titâmio (IV) para aplicação em protetores solares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo comparativo dos constituintes químicos de Brosimum gaudichaudii Trécul e do medicamento V

Pós-graduação em Química - IQ

Resposta do linfoma cutâneo canino à lomustina: achados clínicos, imunohistoquímicos e expressão gênica

Pós-graduação em Medicina Veterinária - FMVZ

Planejamento, síntese e avaliação fotoprotetora de novos compostos híbridos derivados do resveratrol, cinamatos e avobenzona planejados como filtros solares

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Queratoses actínias disseminadas de membros superiores: comparação da terapia fotodinâmica com ácido aminolevulínico 15%¨e metil aminolevulínico 15 % através do protótico kerato PDT

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

Frequency of various types of neoplasia in a group of acromegalic patients

OBJECTIVE: To determine the frequency of colon cancer, primary hyperparathyroidism, thyroid tumor, and skin cancer in all acromegalic patients in follow-up at the Clinics Hospital - Botucatu Medical School, from 2005 to 2011. SUBJECTS AND METHODS: These patients were evaluated retrospectively for colon cancer, primary hyperparathyroidism, dermatological, and thyroid tumors. RESULTS: Of 29 patients included at the beginning of the study, two were excluded. Among 19 patients submitted to colonoscopy, one presented colon adenocarcinoma (5%). Thyroid nodules were present in 63% of patients, and papilliferous carcinoma was confirmed in two patients (7,7%). Four patients were confirmed as having primary hyperparathyroidism (15%). The most common dermatologic lesions were thickened skin (100%), acrochordons (64%), epidermal cysts (50%), and pseudo-acanthosis nigricans (50%). Only one patient presented basal cell carcinoma. CONCLUSION: Although a small number of acromegalic patients was studied, our findings confirm the high frequency of thyroid neoplasias and primary hyperparathyroidism in this group of patients.

Segundo tumor primário, radioinduzido, em pacientes com neoplasias de próstata, após radioterapia

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

Oral acetylsalicylic acid and prevalence of actinic keratosis

Objective: To investigate the influence of a regular oral use of acetylsalicylic acid in the prevalence of actinic keratosis.Methods: A case-control study with dermatologic outpatients above 50 years of age assessed between 2009 and 2011. Cases were defined as those who had been under regular use of oral acetylsalicylic acid for more than six consecutive months. The assessment focused on: age, sex, skin-type, tobacco smoking, use of medication, occurrence of individual or family skin cancer, and sunscreen and sun exposure habits. Actinic keratoses were counted in the medial region of the face and upper limbs. Counts were adjusted by co-variables based on a generalized linear model.Results: A total of 74 cases and 216 controls were assessed. The median time of acetylsalicylic acid use was 36 months. Cases differed from controls as to the highest age, highest prevalence of use of angiotensin-converting enzyme inhibitors and fewer keratosis on the face and on the upper limbs (p < 0.05). The multivariate model showed that the use of acetylsalicylic acid was associated to lower counts of face actinic keratosis and upper-limb erythematous actinic keratosis (p < 0.05), regardless of other risk factors.Conclusion: The regular use of oral acetylsalicylic acid for more than six months was associated to a lower prevalence of actinic keratosis, especially facial and erythematous ones.

Novel Antimicrobial Peptides Bacterial Cellulose Obtained by Symbioses Culture Between Polyhexanide Biguanide (PHMB) and Green Tea

Bacterial cellulose is a highly hydrated pellicle made up of a random assembly of ribbon shaped fibers less than 5 nm wide. The unique properties provided by the nanometric structure have led to a number of diagnostic biological probes, display devices due to their unique size-dependent medical applications. Bacterial cellulose matrix extracellular is a novel biotechnology and unique medicine indicated for ultimate chronic wound treatment management, drug delivery, tissue engineering, skin cancer and offers an actual and effective solution to a serious medical and social problem and to promote rapid healing in lesions caused by Diabetic burns, ulcers of the lower limbs or any other circumstance in which there's epidermal or dermal loss. In this work, it is reported novel antimicrobial peptides (AMPs) bacterial cellulose/polyhexanide biguanide (PHMB) which are produced by symbioses culture between polyhexanide biguanide and green tea culture medium resulting in the pure 3-D structure consisting of an ultra-fine network of novel biocellulose/PHMB nanofibres matrix (2-8 nm), highly hydrated (99% in weight), and with higher molecular weight, full biocompatibility.

Metastatic melanoma of the tongue: a case report with immunohistochemical profile

BackgroundMelanoma of the skin is characterised by a high metastatic potential, but reports of metastasis to the tongue are rare. We report a case of skin melanoma with metastasis to the lymph nodes, tongue and brain.ObjectivesThis report highlights the clinical and histological features of oral metastatic melanoma.Case reportA 72-year-old man was seen with a nodule on the tongue. The differential diagnosis included salivary gland tumour, lymphoma and metastatic melanoma. His medical history revealed treatment for melanoma in the periumbilical region and micrometastases in the inguinal lymph nodes. An incisional biopsy was obtained and histological analysis showed the presence of a solid, epithelioid malignant tumour of monotonous appearance infiltrating the skeletal musculature. Immunohistochemistry showed reactivity of neoplastic cells to anti-HMB45, anti-melan A and anti-S100 antibodies and negativity for anti-PAN cytokeratin, confirming the diagnosis of metastatic melanoma.ConclusionThe present findings highlight the importance of a complete medical evaluation of the patient by anamnesis to identify possible oral repercussions of primary diseases in other organs and/or systems.

Fator de crescimento do endotélio vascular e do transportador de glicose 1 em cães com ceratose actínica e carcinoma de células escamosas

Pós-graduação em Medicina Veterinária - FCAV

Terapia fotodinâmica - Aplicações em lesões cutâneas

Photodynamic therapy is a method of healing skin lesions , in addition to radiotherapy and brachytherapy are commonly used in the treatment of skin cancers , but it is still little known in Brazil , consisting of the application to the skin of a drug in the form of cream or lotion ( photosensitizer ) . It is absorbed by tumor cells and subsequently activated by light device , that wavelength of light in the order of 630 nanometers , promoting the selective destruction of cancer cells while preserving healthy cells around the lesion . It can be considered highly effective for treatment of skin cancer types of non-melanoma ( basal cell carcinoma , 85-100 % success in curing [ 3 ] , and Bowen's disease), actinic keratoses , which are precancerous lesions and still no studies that prove also action in the treatment of acne and aging caused by the sun . And the advantage of this treatment is that , when indicated , replace the surgical procedure , selectively treating the diseased cells . Thus, it offers better cosmetic results, reducing the risk of scarring [ 4 ]

Nanotechnology-based drug delivery systems for melanoma antitumoral therapy: a review

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evaluation of sun protection factor of cosmetic formulations by a simple visual in vitro method mimicking the in vivo method

A new concept for in vitro visual evaluation of sun protection factor (SPF) of cosmetic formulations based on a supramolecular ultraviolet (UV) dosimeter was clearly demonstrated. The method closely parallels the method validated for in vivo evaluation and relies on the determination of the slightest perceptible bleaching of an iron-complex dye/nanocrystallinetitanium dioxide interface (UV dosimeter) in combination with an artificial skin substrate simulating the actual human skin in the presence and absence of a cosmetic formulation. The successful evaluation of SPF was ensured by the similarity of the erythema response of our dosimeter and human skin to UV light irradiation. A good linear correlation of in vitro and in vivo data up to SPF 40 confirmed the effectiveness of such a simple, cheap, and fast method. In short, here we unravel a convenient and accessible visual FPS evaluation method that can help improving the control on cosmetic products contributing to the reduction of skin cancer, one of the critical public health issues nowadays. (C) 2011 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 101:726732, 2012