Candida albicans is involved in periodontal disease, which is influenced by sex hormones. Aim: To study the effects of the estrogen antagonist tamoxifen (TAM) on periodontal disease of oncological patients; clinical oral strains of C. albicans. Patients: With periodontitis and breast cancer and other with AIDS were used. Materials & methods: Periodontal disease was evaluated by the academy of periodontology procedures and the growth of clinical C. albicans isolates were evaluated by the Clinical and Laboratory Standards Institute techniques. Results: Women who consumed TAM for more than 2 years decreased periodontitis severity. In vitro, TAM inhibited the growth of both fluconazole-sensitive and resistant C. albicans. Conclusion: Administered TAM chronically improves periodontal health and has antifungal activity on oral strains isolated from patients with odontologic and medical pathologies.

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Introduction:Registries based on Real-World Data (RWD) are those obtained outside of systematised and randomised clinical trials. They allow the collection of information from a large number of patients and enable the participation of a significant number of professionals. PrecisaXperta is a web platform developed for this purpose with more than 2 years of operation, parameterised for oncology. Its design allows the construction of an epidemiological database in real time and exportable for processing.Objective: To describe the characteristics and operation of this online data recording tool, explain how it was developed and analyse the quality of the information recorded, taking as an example the data obtained for breast cancer.Materials and methods: Physicians, computer scientists and data science analysts participated in the development. Patient data, history, educational level, diagnosis, staging, molecular markers, quality of life, types of treatments, progression and response, imaging, complications, adverse events are some of the fields included. Data treatment in terms of encryption, anonymisation, protection and validation is also explained. The selected breast cancer data for description were processed with medium-level statistical programmes, since the number required to apply Big Data engines is not yet available.Results: From a total of 6,892 solid tumours, 1,892 were breast cancer and 1,654 were selected that complied with a data set minimum elaborated ad hoc. Cases from 13 provinces showed a geolocation bias according to the place of practice of the professionals in the collaborative network. The predominant lack of data was detected in molecular markers (ki67) and correlativity in some lines of treatment. Inconsistencies in dates and therapeutic schemes were also detected. Data curation made it possible to exclude them. The age of the patients was 55.3 ± 11.88 years. At the time of diagnosis, the predominance was in stage I: 36.48% and II 30.06%, with positive hormone receptors in 1,424 (89.96%) cases. The predominant treatments were hormonal (61.54%) and target directed with 30.85% for HER2(+) and 39.14% for HER2(−) accompanied in most cases (85.9%) by some period of chemotherapy. Immunotherapy was much less represented (0.36%). Data were processed, homogenised, pooled and presented and made accessible in a form suitable for application to RWD analyses.Conclusions: PrecisaXperta fulfils this purpose of systematising the information to facilitate its loading with its simple and intuitive interface. From the analysis of the data obtained in breast cancer, it is clear that some fields should be mandatory in order to improve the quality of the information. The results describing the registered breast cancers give us a surface view of the affected population and prepare us to design future studies when we have local Big Data. This type of development, with continuous improvements and online results, will allow with its dissemination, that the participating professionals have information of what happen...

The ecancer/SAC First International Prostate Cancer Symposium, held in Buenos Aires, included national, regional, and international experts in the field of prostate cancer.More than 200 professionals from a variety of areas (clinical urologists, pathologists, oncologists, biologists, imaging specialists, radiation therapists, and generalist doctors, among others) attended, and they proposed multidisciplinary management of prostate pathology from the start in concordance with the ideas set forth by the organising committee.A radiotherapy workshop was also held during the symposium, in which new techniques and their possible uses were specifically discussed. In addition to the local doctors, Dr Lilian Faroni (COI Group, Rio de Janeiro, Brazil), Dr Leonardo Carmona (Chilean Head and Neck Institute, Chile), and Dr Anthony Addesa (Jupiter Medical Centre, Florida, USA) also participated in this symposium.

e11600 Background: Periodontal diseases arise from inflammatory diseases involving the periodontal connective tissue as a common factor. Estrogen produces inflammatory changes that worseness the periodontal preexistent status; and alters the microbiologic environment acting as a nutrient. The objective of this study is to determinate the relation between the treatment with tamoxifen and the prevalence of periodontal disease in women with breast cancer. Methods: Observational study. Sample: 70 postmenopausal patients, distributed in the following groups: Group 1 (N: 17) patients with breast cancer diagnosis and treated with tamoxifen less than one year; Group 2 (N: 18) patients with breast cancer and treated with tamoxifen for 1 to 2 years; Group 3 (N: 18) patients with breast cancer and treated with tamoxifen for 2 to 5 years; Group 4 (N:17) patients with breast cancer that have finalized their treatment with tamoxifen. A poll was performed between these patients, a periodontal scale and a mouth hispid was performed. Microbiologic standard tests were performed for Candida and also molecular biologic tests. Results: Group 1: health: 0%, severe periodontal diseases: 22% Group 2: health: 0% severe periodontal disease: 25% Group 3: health: 25% severe periodontal disease: 10% Group 4: health: 35% severe periodontal disease: 5%. Microbiologic cultives: presence of Candida albicans, tropicalis, parapsilosis, dubliniensis and glabrata. The maoyor variety of species were isolated from Group 1. Conclusions: The time frame with Tamoxifen treatment shows differences in the Periodontal status and reveals differences in the growth of Candida species because a decrease in number and species of yeast, this means an additional benefit in the studied population. We believe it is important to run this study with larger populations in order to determine the benefits of the treatment with Tamoxifen.