Polymorphism

Characterization of variation in the canine suppressor of cytokine signaling-2 (SOCS2) gene

G. Rincón, Young, A. E., Bannasch, D. L., and Medrano, J. F., Characterization of variation in the canine suppressor of cytokine signaling-2 (SOCS2) gene, vol. 6, pp. 144-151, 2007.

Suppressor of cytokine signaling 2 (SOCS2) is a negative regulator of growth hormone signaling. The deletion of SOCS2 in mice results in a 30-50% increase in post-natal growth. In an effort to identify polymorphisms in the SOCS2 gene that may be associated with body size in dogs, we characterized the canine SOCS2 gene and analyzed its genetic diversity among small and large dog breeds. The study was carried out on a total of 520 dogs from 66 different breeds.

Frequencies of GSTM1, GSTT1, and GSTP1 polymorphisms in a Brazilian population

A. Rossini, Rapozo, D. C. M., Amorim, L. M. F., Macedo, J. M. B., Medina, R., Neto, J. F. N., Gallo, C. V. M., and Pinto, L. F. R., Frequencies of GSTM1, GSTT1, and GSTP1 polymorphisms in a Brazilian population, vol. 1, pp. 233-240, 2002.

The glutathione S-transferase (GST) family of enzymes has a vital role in phase II of biotransformation of environmental carcinogens, pollutants, drugs and other xenobiotics. GSTs are polymorphic, with the type and frequency of polymorphism being ethnic dependent. Polymorphisms in GST genes have been shown to be associated with susceptibility to disease and disease outcome. We determined the frequencies of GSTM1, GSTT1 and GSTP1 polymorphisms in 591 volunteers who had been residents of Rio de Janeiro for at least six months.

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