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The incidence of bladder cancer increases rapidly, being attributed by 20-25% with some type of occupational exposure to aromatic amines. Our objective was to review and report a case to demonstrate the presence of risk factors, their incidence and their low recognition to present urothelial bladder tumors. 43-year-old male, saddler since the age of 10. With a history of painless macroscopic hematuria with the presence of clots at the end of diuresis since the age of 22, in whom he was diagnosed with an undifferentiated invasive muscle tumor of histopathological characteristics T2b, N0, M0. This article demonstrates the direct correlation between the exposure factors to carcinogenic agents with the early and aggressive presentation of the bladder tumor, being a key factor for recurrence and tumor progression. [ABSTRACT FROM AUTHOR]

The incidence of bladder cancer increases rapidly, being attributed by 20-25% with some type of occupational exposure to aromatic amines. Our objective was to review and report a case to demonstrate the presence of risk factors, their incidence and their low recognition to present urothelial bladder tumors. 43-year-old male, saddler since the age of 10. With a history of painless macroscopic hematuria with the presence of clots at the end of diuresis since the age of 22, in whom he was diagnosed with an undifferentiated invasive muscle tumor of histopathological characteristics T2b, N0, M0. This article demonstrates the direct correlation between the exposure factors to carcinogenic agents with the early and aggressive presentation of the bladder tumor, being a key factor for recurrence and tumor progression. [ABSTRACT FROM AUTHOR]

Introductión. Peroxidase is an enzyme known for its capability to eliminate phenolic compounds and aromatic amines in aqueous solutions. Its use has been recently proposed for discoloring textile effluents. Objective. To evaluate the effect of an artichoke extract with peroxidase activity and commercial peroxidase on the discoloration of a textile effluent and on two of the dyes within the effluent. Materials and methods. The discoloration tests were performed on a sample of the effluent that had a mixture of direct, disperse and reactive dyes from a textile company and two reactive dyes solutions. Proportions with the degrading agent 2:1 were used for all of the samples. Also, 0.1mL of hydrogen peroxide at 35% was added in order to activate the enzyme. Absorbance measurements were performed with a UV-Vis spectrophotometer. Results. The use of the artichoke extract favored the discoloration of the samples, producing a reduction in the absorbance between 40-60% from the beginning of the treatment. Conclusion. The use of artichoke extract and commercial peroxidase is a good alternative in the discoloration of textile effluents if compared to conventional methods, and artichoke extract is a promising alternative given its low cost. [ABSTRACT FROM AUTHOR]