Research Article

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12/29/2015
GSTM1; GSTT1; Meta-analysis; Polymorphism; Varicocele

The glutathione S-transferase (GST) family represents a major group of detoxification and antioxidant enzymes. Studies have shown that high oxidative stress levels are associated with varicocele. The objective of this study was to assess the relationship between GSTM1 and GSTT1 null polymorphisms and varicocele using a study group of 497 varicocele patients and 476 ... more

B. Zhu; L. Yin; J.Y. Zhang
02/25/2019
Atherosclerosis; eNOS; GSTM1; GSTT1; Hypertension

Atherosclerosis is a multifactorial chronic inflammatory disease that occurs in response to endothelial aggression. Systemic arterial hypertension is the main risk factor for the formation of atheromas, increasing the risk of cardiovascular diseases. Several genes are involved in atherogenesis and hypertension. We analyzed polymorphisms of candidate genes that ... more

M.P. Moraes; K.S.Fe Silva; M.H. Lagares; A.M. Barbosa; J.V.M. Martins; F.L. Campedelli; I.R. da Costa; D.A. Rodrigues; K.K.V.O. Moura
04/30/2019
GSTM1; GSTT1; Polymorphism; Prognosis; Sickle cell anemia

Sickle cell anemia is one of the most common genetic diseases in Brazil. This disease has an autosomal recessive inheritance pattern with a point mutation on chromosome 11, which is the substitution of an adenine by thymine. This mutation leads to the exchange of a glutamic acid for a valine at residue 6 of the beta globin chain, resulting in an abnormal form of hemoglobin, the so-called ... more

O.S.Dias Neto; K.S.Fe Silva; A.M. Barbosa; D.A. Rodrigues; M.H. Lagares; I.R. da Costa; K.K.V.O. Moura
07/31/2019
GSTM1; GSTT1; Polymorphism; Prostate cancer; Risk factor

Prostate cancer (PCa) is the second most common type of tumor among men over 50 years old and its etiology includes environmental, demographic, and genetic risk factors. We investigated a possible association between GSTM1 and GSTT1 polymorphisms, sociodemographic, and clinical factors with PCa in a population of southwestern Bahia, Brazil. The ... more

L.C.F. de Souza; T.L.S. Brito; A.T. Almeida; Y.P. Muniz; P.B. Nishiyama; C.L. Souza; L. Tomazi
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Glutathione-S-transferase; GSTM1; GSTT1; Oral cancer risk; Polymorphisms

The development of oral cancer results from interactions between genetic and environmental factors. Glutathione-S-transferase gene null polymorphisms have a strong impact on the detoxification of carcinogens; therefore they are expected to be related to oncogenic risk, including oral cancer. Various studies have evaluated a possible association of ... more

A.K. Lopes; A.L.M. Tacca; N.A. Nogueira; J.A. Sodario; C.A.S.T. Vilanova-Costa; V.A. Saddi; A.Vde Moraes Filho; A.M.T.C. Silva
02/27/2022
Glutathione S‐transferases; GSTM1; GSTT1; Leukemia; Multiplex PCR

Glutathione S‐transferases are detoxification enzymes that protect cells from oxidative stress and help maintain genomic integrity. GSTM and GSTT family genes may be deleted, causing reduced or no glutathione S-transferase activity so that electrophilic carcinogens cannot be eliminated efficiently. This genetic alteration affects cancer incidence and prognosis. We ... more

D.K. Wosniaki; A.M. Marin; G.S. Soares; D.L. Zanette; L. Blanes; E.C. Munhoz; M. Aoki
08/14/2015
8-Hydroxy deoxyguanosine; DNA damage; Smoking; Tobacco; Waterpipe

Waterpipe tobacco smoking is increasing in popularity, particularly among young adults. This popularity is related to the lack knowledge regarding the health effects of waterpipe smoking. In this study, we examined the genotoxicity of waterpipe smoking using an 8-hydroxy deoxyguanosine (8-OHdG) assay. Genotoxicity was evaluated in the saliva, urine, and serum of 66 waterpipe adult smokers ... more

M. Azab; O.F. Khabour; K.H. Alzoubi; S.A.H. Mahmoud; M. Anabtawi; M. Quttina
07/31/2015
Aging; FOXO3; PI3K/Akt; Signaling pathway; Smoking

We investigated the effects of smoking and aging on pro­teins involved in the forkhead box O3 (FOXO3) signaling pathways in the lungs. Sixteen senescence-accelerated mouse-resistant 1 (SAMR1) and senescence-accelerated mouse-prone 8 (SAMP8) mice at 3 months of age were divided into a normally aged, smoke-exposed group (4 SAMR1 mice), a normally aged, air-exposed group (4 SAMR1 mice), an ... more

Y.M. Yuan; L. Luo; Z. Guo; M. Yang; Y.F. Lin; C. Luo
01/04/2016
CYP1 A1; Gene polymorphism; Non-small cell lung cancer; Smoking

Many studies have shown that genetic factors, environmental factors, and bad living habits, especially smoking, are risk factors for lung cancer. However, not all smokers develop lung cancer, which may be related to different genetic backgrounds. Currently, most research has investigated the GSTM1, XRCC1, XRCC3, CYP2D6, and C188T genes. Little ... more

Y.Q. Xie; J.M. Chen; Y. Liu
12/22/2015
Alcohol; Colorectal neoplasms; Cytochrome P-450 CYP1A1; Cytochrome P-450 CYP2E1; Genetic polymorphisms; Smoking

Polymorphisms in genes encoding P450 cytochrome enzymes may increase the risk of sporadic colorectal cancer (SCRC). Here we investigated the association between SCRC and CYP2E1 (PstI) and CYP1A1 (MspI) polymorphisms in a case-control study. Moreover, we sought to determine any possible associations between this disease and the sociodemographic factors. ... more

M.A. Proença; G.M.M. Fernandes; A. Russo; R.B. Lelis; J.G. Netinho; G.S. Cunrath; A.E. Silva; E.M. Goloni-Bertollo; E.C. Pavarino

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