de Freitas R.M.C.,Sao Paulo Cancer Institute |
de Freitas R.M.C.,University of Sao Paulo |
Prado R.,University of Colorado at Denver |
do Prado F.L.S.,Sarah Kubitschek Hospital |
And 5 more authors.
Revista da Sociedade Brasileira de Medicina Tropical | Year: 2010
Introduction: The purpose of this study was to compare respiratory signs and symptoms between patients with and without chest X-ray abnormalities in order to establish the meaning of radiographic findings in pulmonary PCM diagnosis. Methods: The epidemiological, clinical and radiological lung findings of 44 patients with paracoccidiodomycosis (PCM) were evaluated. Patients were divided into two groups of 23 and 21 individuals according to the presence (group 1) or absence (group 2) of chest X-ray abnormalities, respectively, and their clinical data was analyzed with the aid of statistical tools. Results: As a general rule, patients were rural workers, young adult males and smokers - group 1 and 2, respectively: males (91.3% and 66.7%); mean age (44.4 and 27.9 year-old); smoking (34.7% and 71.4%); acute/subacute presentation (38.1% and 21.7%); chronic presentation (61.9% and 78.3%). The most frequent respiratory manifestations were - group 1 and 2, respectively: cough (25% and 11.4%) and dyspnea (22.7% and 6.8%). No statistical difference was observed in pulmonary signs and symptoms between patients with or without radiographic abnormalities. The most frequent radiological finding was nodular (23.8%) or nodular-fibrous (19%), bilateral (90.5%) and diffuse infiltrates (85.7%). Conclusions: Absence of statistical difference in pulmonary signs and symptoms between these two groups of patients with PCM indicates clinical-radiological dissociation. A simplified classification of radiological lung PCM findings is suggested, based on correlation of these data and current literature review.
Batschauer A.P.,Federal University of Minas Gerais |
Cruz N.G.,Federal University of Minas Gerais |
Oliveira V.C.,Hermes Pardini Institute |
Coelho F.F.,Federal University of Minas Gerais |
And 5 more authors.
Molecular and Cellular Biochemistry | Year: 2011
Genetic factors related to cancer have been extensively studied and several polymorphisms have been associated to breast cancer. The FGFR4, MTHFR, and HFE genes have been associated with neoplastic diseases development. The current report outlines the analysis of the polymorphisms G388A (FGFR4), C677T (MTHFR), C282Y, and H63D (HFE) in Brazilian breast cancer patients. We studied 68 patients with invasive ductal and operable breast carcinoma and 85 women as a control group. The polymorphism frequencies in the breast cancer and control groups were analyzed, but no significant difference was observed by comparing the two groups. The presence of each polymorphism was analyzed according to the clinical features and markers already established as prognostic in the breast cancer group. The C677T, H63D, and G388A polymorphisms were not associated to histological grade, age of diagnosis, expression of HER2 receptor, or estrogen and progesterone receptor. The H63D polymorphism showed a significant association (P = 0.02) with the presence of p53 mutations, and C667T showed association to lymph node involvement (P = 0.05). Lymph node involvement, G388A polymorphism, and histological grade were independently associated to metastasis/death. Our data suggests that the polymorphisms G388A, C677T, and H63D are not useful in breast cancer diagnosis, but they may be significant additional prognostic markers related to breast cancer survival. © Springer Science+Business Media, LLC. 2011.
Abuhid I.M.,Hermes Pardini Institute |
Silva L.C.,Hermes Pardini Institute |
Martins G.P.,Hermes Pardini Institute |
De Rezende N.A.,Federal University of Minas Gerais
Clinical Nuclear Medicine | Year: 2010
A previously healthy 44-year-old woman who had been followed at different health care facilities for symptoms which had begun 3 years earlier was referred to our service for clinical evaluation. Her problems during the initial examination were pain in the sternoclavicular and sacroiliac joints as well as plantar pustulitis. Based on previous x-ray hyperostosis findings, metastatic bone tumors to the spine and first costocondral junctions bilaterally were suspected. A biopsy of the sternoclavicular lesion showed a nonspecific inflammation pattern. On the first physical examination we found a nontender swelling of the sternoclavicular junctions, necrosis of the plantar epidermis and pain at the sacroiliac joints. The patient was referred for bone scintigraphy and positron emission tomography-computed tomography (PET-CT) scan. The whole body bone scintigraphy using Tc-99m MDP showed increased accumulation of the radiotracer in the anterior chest wall and in the right sacroiliac joint. Metastatic bone tumor was not suggested, although exclusion of bone metastases was difficult. The PET-CT with F-18 FDG showed areas with low metabolic activity in the anterior chest wall (SUV Max: 1.96) and in the right sacroiliac joint (SUV Max: 2.18) making the diagnosis of malignancy and acute infection unlikely. The clinical symptoms, the typical skin lesions involving the soles of the feet and low hypermetabolic lesions on PET-CT made the final diagnosis of SAPHO syndrome. © 2010 by Lippincott Williams & Wilkins.
Da-Croce L.,Federal University of Minas Gerais |
Da-Croce L.,Hermes Pardini Institute |
Gambarini-Paiva G.H.R.,Hermes Pardini Institute |
Angelo P.C.,Hermes Pardini Institute |
And 4 more authors.
Cell and Tissue Banking | Year: 2013
The tissue cryopreservation maintains the cellular metabolism in a quiescence state and makes the conservation possible for an indefinite period of time. The choice of an appropriate cryopreservation protocol is essential for maintenance of cryopreserved tissue banks. This study evaluated 10 samples of umbilical cord, from which small fragments of tissue (Wharton's jelly and cord lining membrane) were subjected to two protocols of cryopreservation: slow cooling and vitrification. The samples were frozen for a period of time ranging from 5 to 78 days. The efficiency of cryopreservation was evaluated by testing cell viability, histological analysis, cell culture, cytogenetic analysis and comparison with the results of the fresh samples. The results showed that the slow cooling protocol was more efficient than the vitrification for cryopreservation of umbilical cord tissue, because it has caused fewer changes in the structure of tissue (edema and degeneration of the epithelium) and, despite the significant decrease cell viability compared to fresh samples, the ability of cell proliferation in vitro was preserved in most samples. In conclusion, this study showed that it is possible to cryopreserve small fragments of tissue from the umbilical cord and, to obtain viable cells capable of proliferation in vitro after thawing, contributing to the creation of a frozen tissue bank. © 2012 Springer Science+Business Media B.V.