DNA barcoding reveals mislabeling and commercial fraud in the marketing of fillets of the genus Bleeker, 1862, the Amazonian freshwater catfishes economically important in Brazil.

The substitution and mislabeling is facilitated by the processing of fish products. We employed a DNA barcoding to authenticate fillets labeled as "dourada" (), and "piramutaba" () marketed in the Brazil. A 615 bp of the Cytochrome oxidase subunit I (COI) was sequenced from 305 fillets and subsequently identified to species level by querying public databases and sequences of reference species.

Differential expression of estrogen and progesterone receptors in endometrial polyps and adjacent endometrium in postmenopausal women.

Objective: To evaluate the immunoexpression of estrogen receptor (ER) and progesterone receptor (PR) in gland and stromal cells of endometrial polyps in postmenopausal women.

Study Design: Thirty postmenopausal patients underwent operative hysteroscopies because of benign endometrial polyps. The polyps were identified and subsequently completely removed.