B.S. Chagas

Synergic effect of oral contraceptives, GSTP1 polymorphisms, and high-risk HPV infection in development of cervical lesions

• B.S. Chagas
• A.P.A.D. Gurgel
• S.S.L. Paiva Júnior
• R.C.P. Lima
• M.N. Cordeiro
• R.R. Moura
• A.V.C. Coelho
• K.C.G. Nascimento
• J.C. Silva Neto
• S. Crovella
• A.C. Freitas

Human papillomavirus (HPV) infection is considered a risk factor for cervical cancer. Even if the high-risk HPV (HR-HPV) infection is necessary, environmental co-factors and genetic susceptibility also play an important role in cervical cancer development. In this study, a possible association of rs1695 GSTP1 polymorphisms, HR-HPV infection, and oral contraceptive u.. Read More»

Genet. Mol. Res. 16(3): gmr16039742

DOI: 10.4238/gmr16039742

Localization of HSP single-copy genes by inexpensive, permanent non-fluorescent in situ hybridization on meiotic chromosomes of the grasshopper Schistocerca pallens (Acrididae)

T.T. Rieger, S.V. Oliveira-Silva, I.A. Pachêco, B.S. Chagas, J.F. Santos

There have been many studies on Schistocerca gregaria and Locusta migratoria, which are important grasshopper pests in many parts of the world. However, the main pest grasshopper species in Brazil, S. pallens, Rhammatocerus schistocercoides and Stiphra robusta, are very poorly characterized genetically. We adapted a permanent in situ hybridization method to extend t.. Read More»

Genet. Mol. Res. 6(3):

HPV31 and HPV33 incidence in cervical samples from women in Recife, Brazil

M.F.P.T. Baldez da Silva, B.S. Chagas, V. Guimarães, L.M.C. Katz,P.M. Felix, P.M. Miranda, A.A. Lima, L.C. Arraes, D.B.G. Martins, J.L. Lima Filho, R.C. Stocco, S. Crovella,7, A.C. Freitas and W. Beçak

Human papillomavirus (HPV) has been extensively studied concerning genomic structure, infection mechanisms, and diversity of types, as well as disease progression stages and development of vaccines. HPV type prevalence can differ in specific populations in different countries, according to ethnicity. This is the first report of an integrated project to evaluate the .. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr677

DOI: 10.4238/vol8-4gmr677