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Gene Expression of CYP1A1 and its Possible Clinical Application in Thyroid Cancer Cases
Gallegos-Vargas, JA,Sanchez-Roldan, J,Ronquillo-Sanchez, MD,Carmona-Aparicio, L,Floriano-Sanchez, E,Cardenas-Rodriguez, N Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.7
Background: Thyroid cancer is the most common endocrine malignancy, and exact causes remain unknown. The role of CYP450 1A1 (CYP1A1) in cancer initiation and progression has been investigated. The aim of this work was to analyze, for the first time, CYP1A1 gene expression and its relationship with several clinicopathological factors in Mexican patients diagnosed with thyroid cancer. Materials and Methods: Real-time PCR analysis was conducted on 32 sets of thyroid tumors and benign pathologies. Expression levels were tested for correlations with clinical and pathological data. All statistical analysis were performed using GraphPad Prism version 3.0 software. Results: We found that female gender was associated with thyroid cancer risk (P<0.05). A positive relationship was identified between CYP1A1 mRNA levels and the presence of chronic disease, alcohol use, tumor size, metastasis and an advanced clinical stage (P<0.05). Conclusions: The results suggest that CYP1A1 gene expression could be used as a marker for thyroid cancer.
David Calderón Guzmán,Ernestina Hernández García,Norma Osnaya Brizuela,Francisca Trujillo Jiménez,Gerardo Barragán Mejía,Daniel Santamaría del Ángel,Elvira Nuñez A,Liliana Carmona Aparicio,Hugo Juárez 대한약학회 2010 Archives of Pharmacal Research Vol.33 No.10
The effect that osteltamivir has on the metabolism of catecholamines and oxidative damage in the brains of young patients remains unclear. The purpose of this study was to measure the effects of oseltamivir, in the presence of oligoelements, on biogenic amines and select oxidative biomarkers in the brains of uninfected, young rats under normal conditions. The study was conducted using male Wistar rats intraperitoneally treated for three days with either a control dose of 0.9 % NaCl, oseltamivir (50 mg/kg), oligoelements (50 μL/rat), or oseltamivir (50 mg/kg) and oligoelements (50 μL/rat). The brain tissue extracted from the treated rats was used to determine the concentrations of adrenaline, noradrenaline, and dopamine, as well as the levels of GSH, lipid peroxidation, and ATPase activity. An increase in the concentration of adrenaline and noradrenaline and in the level of GSH in the group treated with oligoelements (p < 0.001) was observed, while the group treated with oseltamivir and oligoelements, the levels of dopamine increased (p < 0.001), and in the groups treated with oligoelements alone or combination with oseltamivir a decrease in lipid peroxidation was observed (p < 0.001). The results of this study suggest that the consumption of oseltamivir and oligoelements induce biphasic changes in the metabolism of catecholamines; thereby, inducing a protective mechanism against oxidative damage in the brains of young rats.