Tuberculosis in developing countries is still an important cause of skin lesions which must be studied via histopathological examination and culture due to their low bacillary load. A PCR test is necessary to obtain faster confirmation of the disease and to establish an early, specific and effective treatment.
the use of molecular biology techniques in these cases of early infant mortality demonstrated that C. trachomatis could play a role in the development of severe infection and in early neonatal death, similarly to that observed with Mycoplasma hominis. Further study is required to determine the pathogenesis of this perinatal infection.
BackgroundCancer development involves an “injury” to the respiratory machinery (Warburg effect) due to decreased or impaired mitochondrial function. This circumstance results in a down regulation of some of the ATPase subunits of the malignant tissue. The objective of this work was to assess and compare the relative expression of mRNA of mitochondrial ATPase subunits between samples of thyroid cancer and benign nodules.Material/MethodsSamples from 31 patients who had an operation for PTC at the General Hospital of Mexico were snap-frozen and stored at −70°C. Thirty-five patients who had an operation for benign tumors were also included in the study. mRNA expression levels of alpha, beta, gamma, and epsilon subunits of F1 and “c12” of subunit Fo were determined by real-time RT-PCR (by duplicate), in order to determine if abnormal expression of these genes could partially explain the Warburg effect in papillary thyroid cancer (PTC).ResultsATP5E transcript alteration (down-expression) was highly associated to PTC diagnosis OR=11.76 (95% confidence interval, 1.245–237.98; p=0.04).ConclusionsRelative down-expression of ATP5E transcript was highly associated with PTC diagnosis. This transcript alteration may be used as a tumoral marker in papillary thyroid cancer.
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